-7(b-)=20-7b

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



-7(b-)=20-7b

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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

We get rid of parentheses

-7b+7b-20=0

We add all the numbers together, and all the variables

-20!=0

There is no solution for this equation

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