(x+40)=(3x-20)

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Solution for (x+40)=(3x-20) equation: 



(x+40)=(3x-20)

We move all terms to the left:

(x+40)-((3x-20))=0

We get rid of parentheses

x-((3x-20))+40=0



We calculate terms in parentheses: -((3x-20)), so:

(3x-20)

We get rid of parentheses

3x-20

Back to the equation:

-(3x-20)



We get rid of parentheses

x-3x+20+40=0

We add all the numbers together, and all the variables

-2x+60=0

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

-2x=-60

x=-60/-2

x=+30

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