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11x-18=40+x
We move all terms to the left:
11x-18-(40+x)=0
We add all the numbers together, and all the variables
11x-(x+40)-18=0
We get rid of parentheses
11x-x-40-18=0
We add all the numbers together, and all the variables
10x-58=0
We move all terms containing x to the left, all other terms to the right
10x=58
x=58/10
x=5+4/5
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