2x+5x=2(x-10)

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Solution for 2x+5x=2(x-10) equation:



2x+5x=2(x-10)
We move all terms to the left:
2x+5x-(2(x-10))=0
We add all the numbers together, and all the variables
7x-(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
7x-2x+20=0
We add all the numbers together, and all the variables
5x+20=0
We move all terms containing x to the left, all other terms to the right
5x=-20
x=-20/5
x=-4

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