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x-4x=7x-9x+2
We move all terms to the left:
x-4x-(7x-9x+2)=0
We add all the numbers together, and all the variables
x-4x-(-2x+2)=0
We add all the numbers together, and all the variables
-3x-(-2x+2)=0
We get rid of parentheses
-3x+2x-2=0
We add all the numbers together, and all the variables
-1x-2=0
We move all terms containing x to the left, all other terms to the right
-x=2
x=2/-1
x=-2
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