-21-3b=63

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Solution for -21-3b=63 equation:



-21-3b=63
We move all terms to the left:
-21-3b-(63)=0
We add all the numbers together, and all the variables
-3b-84=0
We move all terms containing b to the left, all other terms to the right
-3b=84
b=84/-3
b=-28

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