Question

What is the value of the variable that makes the statement true?

a + (–7) + 3 = 0


A.
–4

B.
–3

C.
4

D.
7

Answer 1

Step 1. Simplify both sides of the equation:
a−7+3=0
= a−4=0
Step 2.Add 4 to both sides:
a−4+4=0+4
a = 4

Answer: A = 4