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-3-15=7x-75
We move all terms to the left:
-3-15-(7x-75)=0
We add all the numbers together, and all the variables
-(7x-75)-18=0
We get rid of parentheses
-7x+75-18=0
We add all the numbers together, and all the variables
-7x+57=0
We move all terms containing x to the left, all other terms to the right
-7x=-57
x=-57/-7
x=8+1/7
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