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-x-18=3x+4
We move all terms to the left:
-x-18-(3x+4)=0
We add all the numbers together, and all the variables
-1x-(3x+4)-18=0
We get rid of parentheses
-1x-3x-4-18=0
We add all the numbers together, and all the variables
-4x-22=0
We move all terms containing x to the left, all other terms to the right
-4x=22
x=22/-4
x=-5+1/2
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