8b+21=4b-3

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Solution for 8b+21=4b-3 equation:



8b+21=4b-3
We move all terms to the left:
8b+21-(4b-3)=0
We get rid of parentheses
8b-4b+3+21=0
We add all the numbers together, and all the variables
4b+24=0
We move all terms containing b to the left, all other terms to the right
4b=-24
b=-24/4
b=-6

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