30+25=b+15

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Solution for 30+25=b+15 equation: 



30+25=b+15

We move all terms to the left:

30+25-(b+15)=0

We add all the numbers together, and all the variables

-(b+15)+55=0

We get rid of parentheses

-b-15+55=0

We add all the numbers together, and all the variables

-1b+40=0

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

-b=-40

b=-40/-1

b=+40

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