SOLUTION: I need help in this exercise -12=3-2k-3k (solving multi-step)

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Question 487173: I need help in this exercise -12=3-2k-3k (solving multi-step)
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
-12 = 3 - 2k - 3k

Combine -2k - 3k as -5k

-12 = 3 - 5k

Add -3 to both sides of the equation:

-12 =  3 - 5k
 -3   -3
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-15 =     -5k

Divide both sides by -5

 %28-15%29%2F%28-5%29 = %28-5k%29%2F%28-5%29

Simplify:

 3 = %28cross%28-5%29k%29%2F%28cross%28-5%29%29

 3 = k

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Checking:

-12 = 3 - 2k - 3k
-12 = 3 - 2(3) - 3(3)
-12 = 3 - 6 - 9
-12 = -12

Edwin