4b-20=4(3-7b)

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Solution for 4b-20=4(3-7b) equation: 



4b-20=4(3-7b)

We move all terms to the left:

4b-20-(4(3-7b))=0

We add all the numbers together, and all the variables

4b-(4(-7b+3))-20=0



We calculate terms in parentheses: -(4(-7b+3)), so:

4(-7b+3)

We multiply parentheses

-28b+12

Back to the equation:

-(-28b+12)



We get rid of parentheses

4b+28b-12-20=0

We add all the numbers together, and all the variables

32b-32=0

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

32b=32

b=32/32

b=1

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