3-9a-a-4/12=-a

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Solution for 3-9a-a-4/12=-a equation: 



3-9a-a-4/12=-a

We move all terms to the left:

3-9a-a-4/12-(-a)=0

We add all the numbers together, and all the variables

-9a-a-(-1a)+3-4/12=0

We add all the numbers together, and all the variables

-10a-(-1a)+3-4/12=0

We get rid of parentheses

-10a+1a+3-4/12=0

We multiply all the terms by the denominator


-10a*12+1a*12-4+3*12=0

We add all the numbers together, and all the variables

-10a*12+1a*12+32=0

Wy multiply elements

-120a+12a+32=0

We add all the numbers together, and all the variables

-108a+32=0

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

-108a=-32

a=-32/-108

a=8/27

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