-42+6b=7-b

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Solution for -42+6b=7-b equation: 



-42+6b=7-b

We move all terms to the left:

-42+6b-(7-b)=0

We add all the numbers together, and all the variables

6b-(-1b+7)-42=0

We get rid of parentheses

6b+1b-7-42=0

We add all the numbers together, and all the variables

7b-49=0

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

7b=49

b=49/7

b=7

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