Substitution Worksheet

Use Substitution and the Order of Operations to simplify each problem. Let a = 5, b = -2, x = p + 1, and y = q².

Checking Your Answers

Click “Show Answer” underneath the problem to see the answer. Or click the “Show Answers” button at the bottom of the page to see all the answers at once.

Example:

Equation: b + x²

Answer: p^2 - 2p - 1

Quiz:

```
Equation: 5a + 3 
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Show answer
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Answer: 28
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Equation: 2a / b 
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Answer: -5
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Equation: b² + a² 
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Answer: 29
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Equation: b³ 
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Answer: -8
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Equation: 10b² 
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Answer: 40
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Equation: 5x 
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Answer: 5p + 5
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Equation: -ax 
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Answer: -5p - 5
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Equation: x² 
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Answer: p^2 + 2p + 1
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Equation: ab² 
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Answer: 20
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Equation: a³x 
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Answer: 125p + 125
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Equation: xy 
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Answer: pq^2 + q^2
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Equation: a + xy / q + a - 5

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Answer: 5 + pq + q

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Equation: a(b + 1) - a + ab 
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Answer: -20
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Equation: (a + b)² 
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Answer: 9
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Equation: a(a + x) 
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Answer: 30 + 5p
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Equation: y² - q⁴ 
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Answer: 0
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Equation: abx²

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Answer: -10p^2 - 20p - 10

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Equation: 2x² - 2(p² + 1) 
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Answer: 4p
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Equation: a + b - 5 
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Answer: -2
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Equation: mx - p(m - 1) 
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Answer: m + p
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Substitution Introduction Lesson

Introduction to substituting variables in an expression with numbers or other expressions.

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Substitution Worksheet

Checking Your Answers

Example:

Quiz:

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Tutoring