-x+20=3(x+4)

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Solution for -x+20=3(x+4) equation: 



-x+20=3(x+4)

We move all terms to the left:

-x+20-(3(x+4))=0

We add all the numbers together, and all the variables

-1x-(3(x+4))+20=0



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

3(x+4)

We multiply parentheses

3x+12

Back to the equation:

-(3x+12)



We get rid of parentheses

-1x-3x-12+20=0

We add all the numbers together, and all the variables

-4x+8=0

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

-4x=-8

x=-8/-4

x=+2

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