-4=-1(3)+b

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Solution for -4=-1(3)+b equation: 



-4=-1(3)+b

We move all terms to the left:

-4-(-1(3)+b)=0

We add all the numbers together, and all the variables

-(b-13)-4=0

We get rid of parentheses

-b+13-4=0

We add all the numbers together, and all the variables

-1b+9=0

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

-b=-9

b=-9/-1

b=+9

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