-5(7+7b)-5b=-315

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Solution for -5(7+7b)-5b=-315 equation: 



-5(7+7b)-5b=-315

We move all terms to the left:

-5(7+7b)-5b-(-315)=0

We add all the numbers together, and all the variables

-5(7b+7)-5b-(-315)=0

We add all the numbers together, and all the variables

-5b-5(7b+7)+315=0

We multiply parentheses

-5b-35b-35+315=0

We add all the numbers together, and all the variables

-40b+280=0

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

-40b=-280

b=-280/-40

b=+7

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