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501=-578-3x
We move all terms to the left:
501-(-578-3x)=0
We add all the numbers together, and all the variables
-(-3x-578)+501=0
We get rid of parentheses
3x+578+501=0
We add all the numbers together, and all the variables
3x+1079=0
We move all terms containing x to the left, all other terms to the right
3x=-1079
x=-1079/3
x=-359+2/3
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