7=(-7)(-5b)+112

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Solution for 7=(-7)(-5b)+112 equation: 



7=(-7)(-5b)+112

We move all terms to the left:

7-((-7)(-5b)+112)=0

We multiply parentheses ..

-((+35b)+112)+7=0



We calculate terms in parentheses: -((+35b)+112), so:

(+35b)+112

We get rid of parentheses

35b+112

Back to the equation:

-(35b+112)



We get rid of parentheses

-35b-112+7=0

We add all the numbers together, and all the variables

-35b-105=0

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

-35b=105

b=105/-35

b=-3

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