young solves the equation -2z - 7 = 19 and gets z=6. Which answer best shows how he checked his answer? Find the right answer

Question

A. Step 1: -2(6) - 7

Step 2: -12 - 7

Step 3: -19

B. Step 1: -2(6) - 7

Step 2: 4 - 7

Step 3: -4

C. Step 1: -2(6) - 7

Step 2: -12 - 7

Step 3: -5

D. Step 1: -2(6)-7

Step 2: 12 - 7

Step 3: 5

Answer 1

The correct answer is C.

Step 1: -2(6) - 7 = -12 - 7

Step 2: -12 - 7 = -19

Young checked his answer by substituting z=6 back into the original equation and simplifying to make sure both sides are equal.