4(x-30)=2(x-20)

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Solution for 4(x-30)=2(x-20) equation: 



4(x-30)=2(x-20)

We move all terms to the left:

4(x-30)-(2(x-20))=0

We multiply parentheses

4x-(2(x-20))-120=0



We calculate terms in parentheses: -(2(x-20)), so:

2(x-20)

We multiply parentheses

2x-40

Back to the equation:

-(2x-40)



We get rid of parentheses

4x-2x+40-120=0

We add all the numbers together, and all the variables

2x-80=0

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

2x=80

x=80/2

x=40

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