-15b+21+5b=-9

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Solution for -15b+21+5b=-9 equation:



-15b+21+5b=-9
We move all terms to the left:
-15b+21+5b-(-9)=0
We add all the numbers together, and all the variables
-10b+30=0
We move all terms containing b to the left, all other terms to the right
-10b=-30
b=-30/-10
b=+3

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