2b+45=-3b+90

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Solution for 2b+45=-3b+90 equation: 



2b+45=-3b+90

We move all terms to the left:

2b+45-(-3b+90)=0

We get rid of parentheses

2b+3b-90+45=0

We add all the numbers together, and all the variables

5b-45=0

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

5b=45

b=45/5

b=9

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