3(b+7)=3(b-3)

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



3(b+7)=3(b-3)

We move all terms to the left:

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

We multiply parentheses

3b-(3(b-3))+21=0



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

3(b-3)

We multiply parentheses

3b-9

Back to the equation:

-(3b-9)



We get rid of parentheses

3b-3b+9+21=0

We add all the numbers together, and all the variables

30!=0

There is no solution for this equation

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