Question

Which of the following equations has the solution set {0}?

A.) -14m - 7m + 1 = -7m + 1


B.) -14m + 7m + 1 = -7m + 2


C.) 14m - 7m - 1 = -7m + 1

Answer 1

Answer:A

Explanation:

-14m-7m+1=-7m+1

then

-14m-7m+7m=1-1

-14m=0

m=0

Answer 2

Option A

Explanation:

`-14m-7m+1=-7m+1\\\\-14-7m+1-(-7m+1)=-7m+1-(-7m+1)\\\\-14m=0\\\\-14m/-14=0/-14\\\\\boxed{m=0}`