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12x+18=-43+49
We move all terms to the left:
12x+18-(-43+49)=0
We add all the numbers together, and all the variables
12x+18-6=0
We add all the numbers together, and all the variables
12x+12=0
We move all terms containing x to the left, all other terms to the right
12x=-12
x=-12/12
x=-1
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