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-3-4x-2=4x+9-21x
We move all terms to the left:
-3-4x-2-(4x+9-21x)=0
We add all the numbers together, and all the variables
-4x-(-17x+9)-3-2=0
We add all the numbers together, and all the variables
-4x-(-17x+9)-5=0
We get rid of parentheses
-4x+17x-9-5=0
We add all the numbers together, and all the variables
13x-14=0
We move all terms containing x to the left, all other terms to the right
13x=14
x=14/13
x=1+1/13
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