18+-6a=4a+4(a+3)

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Solution for 18+-6a=4a+4(a+3) equation: 



18+-6a=4a+4(a+3)

We move all terms to the left:

18+-6a-(4a+4(a+3))=0

We add all the numbers together, and all the variables

-6a-(4a+4(a+3))=0



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

4a+4(a+3)

We multiply parentheses

4a+4a+12

We add all the numbers together, and all the variables

8a+12

Back to the equation:

-(8a+12)



We get rid of parentheses

-6a-8a-12=0

We add all the numbers together, and all the variables

-14a-12=0

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

-14a=12

a=12/-14

a=-6/7

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