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Questions and Answers
What is the value of the expression 29 - x when x = 6?
What is the value of the expression 29 - x when x = 6?
What is the value of the expression 3x + x when x = 6?
What is the value of the expression 3x + x when x = 6?
If b = 2 and c = 7, what is the value of the expression 4c + b?
If b = 2 and c = 7, what is the value of the expression 4c + b?
For y = 8 and d = 4, what is the value of the expression yd/2?
For y = 8 and d = 4, what is the value of the expression yd/2?
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Given y = 8 and d = 4, what is the value of the expression 20 - d + y?
Given y = 8 and d = 4, what is the value of the expression 20 - d + y?
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Study Notes
Evaluating Expressions
- Evaluate expressions for given values of variables.
Evaluating for x = 6
- 7x = 7(6) = 42
- 11/3 = 3.67 (approximately)
- 36 is a constant value
- 29 - x = 29 - 6 = 23
- 5 is a constant value
- 9x = 9(6) = 54
- x + 41 = 6 + 41 = 47
- 3x + x = 3(6) + 6 = 24
- 2x - 2 = 2(6) - 2 = 10
Evaluating for b = 2 and c = 7
- 5 + b + c = 5 + 2 + 7 = 14
- 16 + b - c = 16 + 2 - 7 = 11
- c - b + 1 = 7 - 2 + 1 = 6
- 9b - c = 9(2) - 7 = 11
- 7c - b = 7(7) - 2 = 47
- 4c + b = 4(7) + 2 = 30
- 12b + c = 12(2) + 7 = 31
- 22 + b - c = 22 + 2 - 7 = 17
Evaluating for y = 8 and d = 4
- 18 is a constant value
- 20 + d + y = 20 + 4 + 8 = 32
- yd = 8(4) = 32
- 1 / (y/2) = 1 / (8/2) = 1 / 4 = 0.25
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Description
Test your skills in evaluating mathematical expressions with variables such as x, b, c, y, and d. Practice calculating expressions for specific values of the variables and improve your mathematical problem-solving abilities.
