SOLUTION: x-9=(-12)...i got -21, but its wrong. My question is what is the answer and could you please explain how you got the answer?

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: x-9=(-12)...i got -21, but its wrong. My question is what is the answer and could you please explain how you got the answer?      Log On


   

Question 533558: x-9=(-12)...i got -21, but its wrong. My question is what is the answer and could you please explain how you got the answer?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
x-9+=+-12 Add 9 to both sides.
x-9%2B9+=+9-12
x+=+-3