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3x-9x-7=-6+3-7
We move all terms to the left:
3x-9x-7-(-6+3-7)=0
We add all the numbers together, and all the variables
3x-9x-7-(-10)=0
We add all the numbers together, and all the variables
-6x+3=0
We move all terms containing x to the left, all other terms to the right
-6x=-3
x=-3/-6
x=1/2
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