Question

Which equation has exactly one solution? *

A)3(x + 1) = 3x + 2
B)3(x + 1) = 3x + 3
C)3x = x + 2x
D)3x = x + 2

Answer 1

D; 3x = x + 2

Explanation:

3x = x + 2 subtract x from both sides

2x = 2 divide 2 from both sided

x = 1