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

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



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

We move all terms to the left:

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



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

3a-4(a+3)

We multiply parentheses

3a-4a-12

We add all the numbers together, and all the variables

-1a-12

Back to the equation:

-(-1a-12)



We get rid of parentheses

-6a+1a+12+18=0

We add all the numbers together, and all the variables

-5a+30=0

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

-5a=-30

a=-30/-5

a=+6

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