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8+2+4-x=2x+1
We move all terms to the left:
8+2+4-x-(2x+1)=0
We add all the numbers together, and all the variables
-1x-(2x+1)+14=0
We get rid of parentheses
-1x-2x-1+14=0
We add all the numbers together, and all the variables
-3x+13=0
We move all terms containing x to the left, all other terms to the right
-3x=-13
x=-13/-3
x=4+1/3
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