7=4(b+9)-9

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Solution for 7=4(b+9)-9 equation: 



7=4(b+9)-9

We move all terms to the left:

7-(4(b+9)-9)=0



We calculate terms in parentheses: -(4(b+9)-9), so:

4(b+9)-9

We multiply parentheses

4b+36-9

We add all the numbers together, and all the variables

4b+27

Back to the equation:

-(4b+27)



We get rid of parentheses

-4b-27+7=0

We add all the numbers together, and all the variables

-4b-20=0

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

-4b=20

b=20/-4

b=-5

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