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x+x/2=63
We move all terms to the left:
x+x/2-(63)=0
We multiply all the terms by the denominator
x*2+x-63*2=0
We add all the numbers together, and all the variables
x+x*2-126=0
Wy multiply elements
x+2x-126=0
We add all the numbers together, and all the variables
3x-126=0
We move all terms containing x to the left, all other terms to the right
3x=126
x=126/3
x=42
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