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42=7x-3x/2
We move all terms to the left:
42-(7x-3x/2)=0
We add all the numbers together, and all the variables
-(+7x-3x/2)+42=0
We get rid of parentheses
-7x+3x/2+42=0
We multiply all the terms by the denominator
-7x*2+3x+42*2=0
We add all the numbers together, and all the variables
3x-7x*2+84=0
Wy multiply elements
3x-14x+84=0
We add all the numbers together, and all the variables
-11x+84=0
We move all terms containing x to the left, all other terms to the right
-11x=-84
x=-84/-11
x=7+7/11
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