8b-4=7.5b

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Solution for 8b-4=7.5b equation: 



8b-4=7.5b

We move all terms to the left:

8b-4-(7.5b)=0

We add all the numbers together, and all the variables

8b-(+7.5b)-4=0

We get rid of parentheses

8b-7.5b-4=0

We add all the numbers together, and all the variables

0.5b-4=0

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

0.5b=4

b=4/0.5

b=8

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