.3b+7=1.2b-2

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Solution for .3b+7=1.2b-2 equation: 



.3b+7=1.2b-2

We move all terms to the left:

.3b+7-(1.2b-2)=0

We get rid of parentheses

.3b-1.2b+2+7=0

We add all the numbers together, and all the variables

-0.9b+9=0

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

-0.9b=-9

b=-9/-0.9

b=+10

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