Solving Algebraic Equations
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Questions and Answers

What is the simplified form of the numerator in the given equation?

  • $y - 6y$ (correct)
  • $y - (-y)$
  • $y + y$
  • $y - 15y$
  • What is the simplified form of the denominator in the given equation?

  • $2y$
  • $10y$
  • $6y$ (correct)
  • $20y$
  • What is the final simplified form of the equation $\frac{(y - (7 - 8)y)}{(9y - (3 + 4)y)} = \frac{2}{3}$ ?

  • $\frac{2y}{6y} = \frac{2}{3}$
  • $\frac{y}{y} = \frac{2}{3}$
  • $\frac{2y}{x} = \frac{2}{3}$
  • $\frac{2y}{2y} = \frac{2}{3}$ (correct)
  • Solving the simplified equation, what is the value of $y$?

    <p>$y = \infty$</p> Signup and view all the answers

    Which form below correctly represents the simplified value of the numerator?

    <p>$2y$</p> Signup and view all the answers

    What is the simplified form of the expression $7 - 8$?

    <p>-1</p> Signup and view all the answers

    What does the expression $(3 - 4y)^2$ expand to?

    <p>9 - 24y + 16y^2</p> Signup and view all the answers

    Simplify $y - (-1)y$.

    <p>2y</p> Signup and view all the answers

    What is the simplified form of the denominator $9y$?

    <p>9y</p> Signup and view all the answers

    What is $-2/9$ when the common terms are factorized?

    <p>-2/9</p> Signup and view all the answers

    What is the first step in solving the equation $\frac{x}{4} + \frac{3}{2} = \frac{5}{8}$?

    <p>Subtract $\frac{3}{2}$ from both sides.</p> Signup and view all the answers

    After subtracting $\frac{3}{2}$ from both sides, what is the resulting equation?

    <p>$\frac{x}{4} = \frac{-19}{8}$</p> Signup and view all the answers

    What is the next step after obtaining $\frac{x}{4} = \frac{-7}{8}$?

    <p>Multiply both sides by 4.</p> Signup and view all the answers

    What is the value of x when $\frac{x}{4} = \frac{-7}{8}$?

    <p>$\frac{-7}{2}$</p> Signup and view all the answers

    Which of the following checks the solution x of $\frac{x}{4} + \frac{3}{2} = \frac{5}{8}$?

    <p>$\frac{-7}{8} + \frac{12}{8} = \frac{5}{8}$</p> Signup and view all the answers

    What is the simplified form of the left-hand side of the equation?

    <p>$\frac{-7y}{9y-3y}$</p> Signup and view all the answers

    What is the correct representation of the numerator of the left-hand expression?

    <p>$y - (2 - 8)y$</p> Signup and view all the answers

    What is the correct representation of the denominator of the left-hand expression?

    <p>$9y - (3 - 4y)$</p> Signup and view all the answers

    What is the result when the left-hand side of the equation is simplified?

    <p>$\frac{-7}{6}$</p> Signup and view all the answers

    What is the value of $y$ that satisfies the equation?

    <p>$-2$</p> Signup and view all the answers

    What is the value of $4 - (3 - 9)$?

    <p>10</p> Signup and view all the answers

    What is the result of $2 - 8$?

    <p>-6</p> Signup and view all the answers

    What is the simplified value of $\frac{-6}{10}$?

    <p>$-\frac{3}{5}$</p> Signup and view all the answers

    What is the numerator in the simplified form of the expression $\frac{2 - 8}{4 - (3 - 9)}$?

    <p>-6</p> Signup and view all the answers

    What is the correct simplified form of the expression $\frac{2 - 8}{10}$?

    <p>$-\frac{3}{5}$</p> Signup and view all the answers

    What is the simplified form of the numerator of the expression?

    <p>-8y + y</p> Signup and view all the answers

    What is the simplified form of the denominator of the expression?

    <p>9y - (3 - 4y)^2</p> Signup and view all the answers

    How do you simplify $(3 - 4y)^2$?

    <p>$9 - 24y + 16y^2$</p> Signup and view all the answers

    What is the final simplified form of $rac{y - (7 - 8)y}{9y - (3 - 4y)^2}$?

    <p>$rac{7y}{25y^2 - 24y + 9}$</p> Signup and view all the answers

    What values of $y$ satisfy the equality $rac{7y}{25y^2 - 24y + 9} = rac{2}{3}$?

    <p>$y = -rac{3}{2}$</p> Signup and view all the answers

    What is the simplified form of the numerator $y - (7 - 8y)$?

    <p>$-7 + 9y$</p> Signup and view all the answers

    What is the simplified form of the denominator $9y - (6 + 4y)$?

    <p>$9y - 6 - 4y$</p> Signup and view all the answers

    What is the final simplified form of the fraction before solving for $y$?

    <p>$\frac{-7 + 9y}{5y - 6}$</p> Signup and view all the answers

    What is the first step to solve the equation $\frac{-7 + 9y}{5y - 6} = \frac{2}{3}$?

    <p>Cross multiply</p> Signup and view all the answers

    After cross multiplying, which equation do you get?

    <p>$2(-7 + 9y) = 3(5y - 6)$</p> Signup and view all the answers

    What is the first step in solving the equation $\frac{y-(7-8y)}{9y-(3+4y)}=\frac{2}{3}$?

    <p>Cross multiply to eliminate the fraction</p> Signup and view all the answers

    After cross-multiplying, what does the equation $\frac{y-(7-8y)}{9y-(3+4y)}=\frac{2}{3}$ become?

    <p>$3(y - 7 + 8y) = 2(9y - 3 - 4y)$</p> Signup and view all the answers

    What is the simplified form of $y-(7-8y)$?

    <p>$9y - 7$</p> Signup and view all the answers

    If $\frac{y - (7 - 8y)}{9y - (3 + 4y)} = \frac{2}{3}$ is simplified further, what does $9y - (3 + 4y)$ become?

    <p>$5y - 3$</p> Signup and view all the answers

    After simplifying and solving $\frac{y - (7 - 8y)}{9y - (3 + 4y)} = \frac{2}{3}$, what is the value of $y$?

    <p>$y = \frac{1}{3}$</p> Signup and view all the answers

    What is the simplified form of the expression $y - (7 - 8y)$?

    <p>$8y - 7$</p> Signup and view all the answers

    What is the simplified form of the expression $9y - (3 - 4y)$?

    <p>$9y - 3 + 4y$</p> Signup and view all the answers

    What is the combined simplified form of the denominator $9y - 3 + 4y$?

    <p>$13y - 3$</p> Signup and view all the answers

    After simplifying the equation to $rac{8y - 7}{13y - 3} = rac{2}{3}$, what should the next step be to solve for $y$?

    <p>Cross multiply to get $3(8y - 7) = 2(13y - 3)$</p> Signup and view all the answers

    What is the final value of $y$ after solving $3(8y - 7) = 2(13y - 3)$?

    <p>$y = 1$</p> Signup and view all the answers

    What is the first step to simplify the expression in the numerator $y - (7 - 8y)$?

    <p>Distribute the negative sign across the parentheses.</p> Signup and view all the answers

    What does the expression $y - (7 - 8y)$ simplify to?

    <p>9y - 7</p> Signup and view all the answers

    What is the correct expansion of $(3 + 4y)^2$?

    <p>$9 + 24y + 16y^2$</p> Signup and view all the answers

    After simplifying the fraction on the left side of the equation, what is the denominator?

    <p>$-9 + 24y - 16y^2$</p> Signup and view all the answers

    What value of $y$ solves the equation $\frac{(9y - 7)}{(-9 + 24y - 16y^2)} = \frac{2}{3}$?

    <p>$y = 1$</p> Signup and view all the answers

    Study Notes

    Simplifying Algebraic Expressions

    • The given expression is y = (7 - 8)y - 2 / 9y - (3 - 4y)^2, which can be rewritten in different forms.
    • Another form of the expression is y - (7 - 8)y / 9y - (3 - 4)y = 2 / 3.
    • The expression can also be written as y - (7 - 8)y / 9y - (3 + 4)y = 2 / 3.
    • The expression y - (7 - 8)y / 9y - (6 + 4)y = 2 / 3 is also an equivalent form.
    • The expression y - (7 - 8)y / 9y - (3 - 4)y^2 = 2 / 3 is another way to rewrite the original expression.

    Evaluating Expressions

    • The expression y = (2 - 8) / (4 - (3 - 9)) can be simplified to y = (2 - 8) / (4 + 6).
    • Further simplification leads to y = (-6) / 10, which equals -3 / 5.
    • Therefore, the final simplified value of y is -3 / 5.

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