99=2(-2b-3)+7

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Solution for 99=2(-2b-3)+7 equation: 



99=2(-2b-3)+7

We move all terms to the left:

99-(2(-2b-3)+7)=0



We calculate terms in parentheses: -(2(-2b-3)+7), so:

2(-2b-3)+7

We multiply parentheses

-4b-6+7

We add all the numbers together, and all the variables

-4b+1

Back to the equation:

-(-4b+1)



We get rid of parentheses

4b-1+99=0

We add all the numbers together, and all the variables

4b+98=0

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

4b=-98

b=-98/4

b=-24+1/2

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