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(X+2X/7)=4
We move all terms to the left:
(X+2X/7)-(4)=0
We add all the numbers together, and all the variables
(+X+2X/7)-4=0
We get rid of parentheses
X+2X/7-4=0
We multiply all the terms by the denominator
X*7+2X-4*7=0
We add all the numbers together, and all the variables
2X+X*7-28=0
Wy multiply elements
2X+7X-28=0
We add all the numbers together, and all the variables
9X-28=0
We move all terms containing X to the left, all other terms to the right
9X=28
X=28/9
X=3+1/9
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