20+x=2(4+x)

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



20+x=2(4+x)
We move all terms to the left:
20+x-(2(4+x))=0
We add all the numbers together, and all the variables
x-(2(x+4))+20=0
We calculate terms in parentheses: -(2(x+4)), so:
2(x+4)
We multiply parentheses
2x+8
Back to the equation:
-(2x+8)
We get rid of parentheses
x-2x-8+20=0
We add all the numbers together, and all the variables
-1x+12=0
We move all terms containing x to the left, all other terms to the right
-x=-12
x=-12/-1
x=+12

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