-7(1+b)=-7b+7(-2b-1)

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Solution for -7(1+b)=-7b+7(-2b-1) equation: 



-7(1+b)=-7b+7(-2b-1)

We move all terms to the left:

-7(1+b)-(-7b+7(-2b-1))=0

We add all the numbers together, and all the variables

-7(b+1)-(-7b+7(-2b-1))=0

We multiply parentheses

-7b-(-7b+7(-2b-1))-7=0



We calculate terms in parentheses: -(-7b+7(-2b-1)), so:

-7b+7(-2b-1)

We multiply parentheses

-7b-14b-7

We add all the numbers together, and all the variables

-21b-7

Back to the equation:

-(-21b-7)



We get rid of parentheses

-7b+21b+7-7=0

We add all the numbers together, and all the variables

14b=0

b=0/14

b=0

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