SOLUTION: I am stuck on this problem, and I don't think it is right. 15-(-3)(2x-9)=60 15-(-6x)+27=60 15+27+6x=60 42+6x=60 42+6x-42=60-42 6x=18 x=3

Algebra ->  Equations -> SOLUTION: I am stuck on this problem, and I don't think it is right. 15-(-3)(2x-9)=60 15-(-6x)+27=60 15+27+6x=60 42+6x=60 42+6x-42=60-42 6x=18 x=3      Log On


   

Question 110167: I am stuck on this problem, and I don't think it is right.
15-(-3)(2x-9)=60
15-(-6x)+27=60
15+27+6x=60
42+6x=60
42+6x-42=60-42
6x=18
x=3
Found 2 solutions by checkley71, solver91311:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
15-(-3)(2X-9)=60
15-(-6X+27)=60
15+6X-27=60
6X=60-15+27
6X=72
X=72/6
X=12 ANSWER.
PROOF
15-(-3)(2*12-9)=60
15-(-3)(24-9)=60
15-(-3)(15)=60
15-(-45)=60
15+45=60
60=60

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
Actually you have a sign error in the 2nd step.
:
Try it this way:
15-%28-3%29%282x-9%29=60
:
15-%28%28-6x%29%2B27%29=60 :note the extra set of parentheses.
15-27%2B6x=60
-12%2B6x=60 : collect terms
6x=72 : add 12 to both sides
x=12 : divide by 6
:
Check your answer:
:
15-%28-3%29%282%2812%29-9%29=60
15-%28-3%29%2824-9%29=60
15-%28-3%29%2815%29=60
15-%28-45%29=60
15%2B45=60
:
Hope that helps