11b+8(-4b+7)=4(-2b+8)-15

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Solution for 11b+8(-4b+7)=4(-2b+8)-15 equation: 



11b+8(-4b+7)=4(-2b+8)-15

We move all terms to the left:

11b+8(-4b+7)-(4(-2b+8)-15)=0

We multiply parentheses

11b-32b-(4(-2b+8)-15)+56=0



We calculate terms in parentheses: -(4(-2b+8)-15), so:

4(-2b+8)-15

We multiply parentheses

-8b+32-15

We add all the numbers together, and all the variables

-8b+17

Back to the equation:

-(-8b+17)



We add all the numbers together, and all the variables

-21b-(-8b+17)+56=0

We get rid of parentheses

-21b+8b-17+56=0

We add all the numbers together, and all the variables

-13b+39=0

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

-13b=-39

b=-39/-13

b=+3

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