# Substitution Worksheet

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

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:

1. Equation: 5a + 3

2. Equation: 2a / b

3. Equation: b2 + a2

4. Equation: b3

5. Equation: 10b2

6. Equation: 5x

7. Equation: -ax

8. Equation: x2
Answer: p^2 + 2p + 1

9. Equation: ab2

10. Equation: a3x

11. Equation: xy

12. Equation: a + xy / q + a - 5
Answer: 5 + pq + q

13. Equation: a(b + 1) - a + ab

14. Equation: (a + b)2

15. Equation: a(a + x)

16. Equation: y2 - q4

17. Equation: abx2
Answer: -10p^2 - 20p - 10

18. Equation: 2x2 - 2(p2 + 1)

19. Equation: a + b - 5

20. Equation: mx - p(m - 1)

## Related Pages

Substitution Introduction Lesson

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

## Tutoring

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