Question

What is the solution to this equation?

x + 12 = -5

A. x = -7
B. x = 7
C. x = 17
D. x = -17

Answer 1

x + 12 = -5

Subtract 12 from both sides

x + 12 - 12 = -5 - 12

Simplify

x = -17

Answer

D. x = -17

Answer 2

Note the equal sign.

Isolate the x. subtract 12 from both sides

x + 12 (-12) = - 5 (-12)

x = - 5 - 12

simplify

x = -5 - 12

x = -17

x = -17, or (D) is your answer

hope this helps