Solving One-Step Equations with Different Number Types
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Questions and Answers

For the equation x + 8 = 15, what is the value of x?

  • 7 (correct)
  • 15
  • 23
  • 7

If x - 4 = 10, what is the value of x?

  • 4
  • -6
  • 6
  • 14 (correct)

In one-step equations with decimals, what may make the steps more complex?

  • The presence of fractions
  • Having a higher number of digits after the decimal point (correct)
  • Using smaller decimal values
  • Exponentiation

For the equation $3 imes 4 ext{ ÷ } 2 = x$, what is the value of x?

<p>$6$ (C)</p> Signup and view all the answers

What different types of number values can be encountered when solving one-step equations?

<p>Whole numbers, decimal numbers, fractional numbers (A)</p> Signup and view all the answers

If $x + 3.25 = 8$, what is the value of x?

<p>$4.75$ (A), $4.75$ (B)</p> Signup and view all the answers

When solving one-step equations with fractions, which operation is more commonly used?

<ul> <li>Multiplication (B)</li> </ul> Signup and view all the answers

For the equation $7 - x = 2$, what is the value of x?

<p>$5$ (C)</p> Signup and view all the answers

Flashcards

Solving one-step equations with whole numbers

Involves finding the unknown variable (e.g., x) in an equation with whole numbers by using addition or subtraction to isolate the variable.

One-step equation with decimals

Solves equations with decimal numbers using addition or subtraction to isolate the variable.

One-step equation with fractions

Involves solving equations with fractions, often using multiplication or division to isolate the variable.

Isolating the variable

The process of getting the variable (unknown) by itself on one side of the equation.

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Whole numbers in equations

Equations consisting of whole numbers (integers) used to find unknown variables.

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Decimal numbers in equations

Equations including decimal numbers (e.g., 5 - 1.75 = y).

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Fractional numbers in equations

Equations involving fractional numbers (e.g., 3 × 8 ÷ 2 = x).

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Mathematical order of operations

Rules determining the sequence in which calculations are performed.

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Study Notes

Solving One Step Equations Involves Different Types of Numbers

When solving one-step equations, you may encounter different types of number values—whole numbers, decimal numbers, and fractional numbers. Each type requires its own approach to solve them effectively. Let's explore these methods together.

Solving One-Step Equations with Whole Numbers

Whole number equations typically involve adding or subtracting two integers until they match the value given by the equation. For example, if your equation is (5 + x = 7), you would need to find the integer (\text{x}) such that when added to 5 equals 7. This means that (x = 2).

Solving One-Step Equations with Decimal Numbers

Decimals can also appear in simple linear equations like (5 - 1.75 = y). Here again, it involves finding a variable (\text{y}) which matches the difference between 5 and 1.75; therefore, (y = 3.25). These steps can become more complex depending on how many digits after the dot you have in your input values. However, the general principle remains similar: perform addition or subtraction operations on the decimal numbers to obtain the result on the other side of the equal sign.

Solving One-Step Equations with Fractional Numbers

Fractions require a slightly different method because they often involve multiplication or division operations instead of just plain arithmetic. An example might look something like this: (3 \times 8 \div 2 = x). To arrive at an answer here, we multiply both sides of the equation by 2 so as to cancel out the denominator from the divisor term on our left side of the equation. Then we get (3 \cdot 8 = x); thus (x = 24) is the solution. With fractions, remember always what operation needs to happen before anything else–multiplying, dividing, or neither? That will help you determine where to start first.

In summary, while each kind of number presents its unique challenges, the basic rule remains the same: simply manipulate symbols based on their mathematical properties to find variables in expressions such that they make sense within any particular context of the problem presented.

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Description

Explore methods for solving one-step equations involving whole numbers, decimal numbers, and fractional numbers. Understand the unique approaches required for each type of number value and how to manipulate symbols based on their mathematical properties to find variables.

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