21+4b=64

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Solution for 21+4b=64 equation: 



21+4b=64

We move all terms to the left:

21+4b-(64)=0

We add all the numbers together, and all the variables

4b-43=0

We move all terms containing b to the left, all other terms to the right

4b=43

b=43/4

b=10+3/4

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