Question

Which equation has an infinite number of solutions?

A) -7+2x=8
B) -7+2x=7+2x
C) -7+2x=2-9+2x
D) -7+2x=x

Answer 1

answer c. simplify to get -7+2x=-7+2x. after subtracting -2x from both u get -7=-7 which is infinite. so yeah choice C