-15+7=-b-1

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Solution for -15+7=-b-1 equation: 



-15+7=-b-1

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-(-1b-1)-8=0

We get rid of parentheses

1b+1-8=0

We add all the numbers together, and all the variables

b-7=0

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

b=7

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