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-8=14b-5b+21
We move all terms to the left:
-8-(14b-5b+21)=0
We add all the numbers together, and all the variables
-(9b+21)-8=0
We get rid of parentheses
-9b-21-8=0
We add all the numbers together, and all the variables
-9b-29=0
We move all terms containing b to the left, all other terms to the right
-9b=29
b=29/-9
b=-3+2/9
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