Which of the following equations has infinitely many real solutions? A. 3(x - 7) = 3x + 21 B. 3x + 1 = 3x - 1 C. 3x + 1 = x - 1 D. 3(x - 7) = 3x - 21

Question

asked Apr 14, 2019 158k views

1 Answer

Delane · Answer 1 · 2019-04-20T07:30:37+0000

Answer is D. 3(x - 7) = 3x - 21

because

3(x - 7) = 3x - 21

Distributive property

3x - 21 = 3x - 21

0 = 0

Infinitely many real solutions