-(12+8a)=-100

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Solution for -(12+8a)=-100 equation: 



-(12+8a)=-100

We move all terms to the left:

-(12+8a)-(-100)=0

We add all the numbers together, and all the variables

-(8a+12)-(-100)=0

We add all the numbers together, and all the variables

-(8a+12)+100=0

We get rid of parentheses

-8a-12+100=0

We add all the numbers together, and all the variables

-8a+88=0

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

-8a=-88

a=-88/-8

a=+11

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