7=1(7)+b

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Solution for 7=1(7)+b equation: 



7=1(7)+b

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(b+17)+7=0

We get rid of parentheses

-b-17+7=0

We add all the numbers together, and all the variables

-1b-10=0

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

-b=10

b=10/-1

b=-10

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