Question

5. Solve 3x + 2(2x + 9) = - 10. Match a reason for each step.

A) 3x + 2(2x + 9) = -10
B) 3x + 4x +18=10
C) 7x + 18-10
= -28
D) 7x = -
E) x = -4
1. Given
2. Simplify
3. Distributive Property
4. Division Property of Equality
5. Subtraction Property of Equality

Answer 1

Answer: x = -18 / 7

Given: A) 3x + 2(2x + 9) = -10

Simplify: C) 7x + 18 - 10 = -28

Distributive Property: B) 3x + 4x + 18 = 10

Division Property of Equality: F) x = -18 / 7

Subtraction Property of Equality: D) 7x - 10 = -28