15-b=-(-7+b)+8

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Solution for 15-b=-(-7+b)+8 equation: 



15-b=-(-7+b)+8

We move all terms to the left:

15-b-(-(-7+b)+8)=0

We add all the numbers together, and all the variables

-b-(-(b-7)+8)+15=0

We add all the numbers together, and all the variables

-1b-(-(b-7)+8)+15=0



We calculate terms in parentheses: -(-(b-7)+8), so:

-(b-7)+8

We get rid of parentheses

-b+7+8

We add all the numbers together, and all the variables

-1b+15

Back to the equation:

-(-1b+15)



We get rid of parentheses

-1b+1b-15+15=0

We add all the numbers together, and all the variables

=0

b=0/1

b=0

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