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-3(6+5b)=-9
We move all terms to the left:
-3(6+5b)-(-9)=0
We add all the numbers together, and all the variables
-3(5b+6)-(-9)=0
We add all the numbers together, and all the variables
-3(5b+6)+9=0
We multiply parentheses
-15b-18+9=0
We add all the numbers together, and all the variables
-15b-9=0
We move all terms containing b to the left, all other terms to the right
-15b=9
b=9/-15
b=-3/5
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