0=4a-9(3-a)

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Solution for 0=4a-9(3-a) equation: 



0=4a-9(3-a)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(4a-9(-1a+3)), so:

4a-9(-1a+3)

We multiply parentheses

4a+9a-27

We add all the numbers together, and all the variables

13a-27

Back to the equation:

-(13a-27)



We get rid of parentheses

-13a+27=0

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

-13a=-27

a=-27/-13

a=2+1/13

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