4(5-7b)-4=-3(1+3b)

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Solution for 4(5-7b)-4=-3(1+3b) equation: 



4(5-7b)-4=-3(1+3b)

We move all terms to the left:

4(5-7b)-4-(-3(1+3b))=0

We add all the numbers together, and all the variables

4(-7b+5)-(-3(3b+1))-4=0

We multiply parentheses

-28b-(-3(3b+1))+20-4=0



We calculate terms in parentheses: -(-3(3b+1)), so:

-3(3b+1)

We multiply parentheses

-9b-3

Back to the equation:

-(-9b-3)



We add all the numbers together, and all the variables

-28b-(-9b-3)+16=0

We get rid of parentheses

-28b+9b+3+16=0

We add all the numbers together, and all the variables

-19b+19=0

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

-19b=-19

b=-19/-19

b=1

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