Question

What is the justification for step 2 in the solution process? 12 − x = 7x + 32 Step 1: -x = 7x + 20 Step 2: -8x = 20

A. the division property of equality
B.the addition property of equality
C. the subtraction property of equality
D. the multiplication property of equality

Answer 1

C. the subtraction property of equality

Explanation:

given

12 − x = 7x + 32

Subtract 12 from each side using the subtraction property of equality

Step 1: -x = 7x + 20

Subtract -7x from each side using the subtraction property of equality

Step 2: -8x = 20