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65=-2x-7x
We move all terms to the left:
65-(-2x-7x)=0
We add all the numbers together, and all the variables
-(-9x)+65=0
We get rid of parentheses
9x+65=0
We move all terms containing x to the left, all other terms to the right
9x=-65
x=-65/9
x=-7+2/9
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