18+4a=-2(1-7a)

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Solution for 18+4a=-2(1-7a) equation: 



18+4a=-2(1-7a)

We move all terms to the left:

18+4a-(-2(1-7a))=0

We add all the numbers together, and all the variables

4a-(-2(-7a+1))+18=0



We calculate terms in parentheses: -(-2(-7a+1)), so:

-2(-7a+1)

We multiply parentheses

14a-2

Back to the equation:

-(14a-2)



We get rid of parentheses

4a-14a+2+18=0

We add all the numbers together, and all the variables

-10a+20=0

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

-10a=-20

a=-20/-10

a=+2

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