Question

Using substitution, which value of x makes this equation true?

3+x = 10

A. 13
B. 7
C. -7
D. -13

Answer 1

B.

x=7.

Step by step:

x+3=10.

x=7.

(I subtracted 3 on both sides)

Hope this helped!! :)

Answer 2

The answer is B. 7

Explanation:

3 + x = 10

3 + 7 = 10