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3-7-25=9x-x
We move all terms to the left:
3-7-25-(9x-x)=0
We add all the numbers together, and all the variables
-(+8x)+3-7-25=0
We add all the numbers together, and all the variables
-(+8x)-29=0
We get rid of parentheses
-8x-29=0
We move all terms containing x to the left, all other terms to the right
-8x=29
x=29/-8
x=-3+5/8
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