Question

Which of the following equations has x = 2 as a solution?
A. - 9x - 9 = 9
B. 7x - 4 = 10
C. 5x + 10 = 10
D. - 3x + 2 = -8

Answer 1

B. 7x - 4 = 10

If x = 2, then 7(2) - 4 = 14 - 4 = 10, which makes it true.