42=7(b+4)

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Solution for 42=7(b+4) equation: 



42=7(b+4)

We move all terms to the left:

42-(7(b+4))=0



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

7(b+4)

We multiply parentheses

7b+28

Back to the equation:

-(7b+28)



We get rid of parentheses

-7b-28+42=0

We add all the numbers together, and all the variables

-7b+14=0

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

-7b=-14

b=-14/-7

b=+2

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