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33x-42x+21/2=-14x
We move all terms to the left:
33x-42x+21/2-(-14x)=0
We add all the numbers together, and all the variables
-9x-(-14x)+21/2=0
We get rid of parentheses
-9x+14x+21/2=0
We multiply all the terms by the denominator
-9x*2+14x*2+21=0
Wy multiply elements
-18x+28x+21=0
We add all the numbers together, and all the variables
10x+21=0
We move all terms containing x to the left, all other terms to the right
10x=-21
x=-21/10
x=-2+1/10
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