3(x+4)=-(x-18)

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



3(x+4)=-(x-18)

We move all terms to the left:

3(x+4)-(-(x-18))=0

We multiply parentheses

3x-(-(x-18))+12=0



We calculate terms in parentheses: -(-(x-18)), so:

-(x-18)

We get rid of parentheses

-x+18

We add all the numbers together, and all the variables

-1x+18

Back to the equation:

-(-1x+18)



We get rid of parentheses

3x+1x-18+12=0

We add all the numbers together, and all the variables

4x-6=0

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

4x=6

x=6/4

x=1+1/2

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