8.6b+9.89+2.5b=-7.36+4.2b

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Solution for 8.6b+9.89+2.5b=-7.36+4.2b equation: 



8.6b+9.89+2.5b=-7.36+4.2b

We move all terms to the left:

8.6b+9.89+2.5b-(-7.36+4.2b)=0

We add all the numbers together, and all the variables

8.6b+2.5b-(4.2b-7.36)+9.89=0

We add all the numbers together, and all the variables

11.1b-(4.2b-7.36)+9.89=0

We get rid of parentheses

11.1b-4.2b+7.36+9.89=0

We add all the numbers together, and all the variables

6.9b+17.25=0

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

6.9b=-17.25

b=-17.25/6.9

b=-2+1/2

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