-5(3a+9)=-18-7a

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Solution for -5(3a+9)=-18-7a equation: 



-5(3a+9)=-18-7a

We move all terms to the left:

-5(3a+9)-(-18-7a)=0

We add all the numbers together, and all the variables

-5(3a+9)-(-7a-18)=0

We multiply parentheses

-15a-(-7a-18)-45=0

We get rid of parentheses

-15a+7a+18-45=0

We add all the numbers together, and all the variables

-8a-27=0

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

-8a=27

a=27/-8

a=-3+3/8

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