2x-20=4(x-20)

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Solution for 2x-20=4(x-20) equation: 



2x-20=4(x-20)

We move all terms to the left:

2x-20-(4(x-20))=0



We calculate terms in parentheses: -(4(x-20)), so:

4(x-20)

We multiply parentheses

4x-80

Back to the equation:

-(4x-80)



We get rid of parentheses

2x-4x+80-20=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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