-8=4+.5b

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Solution for -8=4+.5b equation: 



-8=4+.5b

We move all terms to the left:

-8-(4+.5b)=0

We add all the numbers together, and all the variables

-(.5b+4)-8=0

We get rid of parentheses

-.5b-4-8=0

We add all the numbers together, and all the variables

-0.5b-12=0

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

-0.5b=12

b=12/-0.5

b=-24

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