4=-4a-12

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Solution for 4=-4a-12 equation: 



4=-4a-12

We move all terms to the left:

4-(-4a-12)=0

We get rid of parentheses

4a+12+4=0

We add all the numbers together, and all the variables

4a+16=0

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

4a=-16

a=-16/4

a=-4

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