420=2(x+10)

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Solution for 420=2(x+10) equation: 



420=2(x+10)

We move all terms to the left:

420-(2(x+10))=0



We calculate terms in parentheses: -(2(x+10)), so:

2(x+10)

We multiply parentheses

2x+20

Back to the equation:

-(2x+20)



We get rid of parentheses

-2x-20+420=0

We add all the numbers together, and all the variables

-2x+400=0

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

-2x=-400

x=-400/-2

x=+200

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