-9(-9+a)=279

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Solution for -9(-9+a)=279 equation: 



-9(-9+a)=279

We move all terms to the left:

-9(-9+a)-(279)=0

We add all the numbers together, and all the variables

-9(a-9)-279=0

We multiply parentheses

-9a+81-279=0

We add all the numbers together, and all the variables

-9a-198=0

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

-9a=198

a=198/-9

a=-22

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