Question

Which of the following equations has exactly one solution?

A.
4x – 4 + 2x = 6x – 4

B.
2(4x + 5) = 8x + 10

C.
4x – 8 = 4(x – 4)

D.
3x + 5 = 2x – 6

Answer 1

Correct option:

D. 3x + 5 = 2x - 6

Solution:

3x + 5 = 2x - 6

=> x = 1

Answer 2

Answer:

D

3x-2x=-11

x = -11

only one solution