Question

For which value of x is the equation 3(3 + x) = 15 + x true?

A) 1
B) 2
C) 3
D) 4

Answer 1

c

Explanation:

Answer 2

C

Explanation:

3(3 + x) = 15 + x

Open bracket

9 + 3x = 15 + x

Collecting like terms

3x - x = 15 - 9

2x = 6

Dividing by 2

x = 6/2

x = 3