2x+x=2(5+4x)

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Solution for 2x+x=2(5+4x) equation:



2x+x=2(5+4x)
We move all terms to the left:
2x+x-(2(5+4x))=0
We add all the numbers together, and all the variables
2x+x-(2(4x+5))=0
We add all the numbers together, and all the variables
3x-(2(4x+5))=0
We calculate terms in parentheses: -(2(4x+5)), so:
2(4x+5)
We multiply parentheses
8x+10
Back to the equation:
-(8x+10)
We get rid of parentheses
3x-8x-10=0
We add all the numbers together, and all the variables
-5x-10=0
We move all terms containing x to the left, all other terms to the right
-5x=10
x=10/-5
x=-2

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