7-5(8+6b)=-213

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Solution for 7-5(8+6b)=-213 equation: 



7-5(8+6b)=-213

We move all terms to the left:

7-5(8+6b)-(-213)=0

We add all the numbers together, and all the variables

-5(6b+8)+7-(-213)=0

We add all the numbers together, and all the variables

-5(6b+8)+220=0

We multiply parentheses

-30b-40+220=0

We add all the numbers together, and all the variables

-30b+180=0

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

-30b=-180

b=-180/-30

b=+6

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