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5-((1/2)*x) = (5/8)*x+2 // - (5/8)*x+2
5-((1/2)*x)-((5/8)*x)-2 = 0
(-1/2)*x+(-5/8)*x-2+5 = 0
3-9/8*x = 0 // - 3
-9/8*x = -3 // : -9/8
x = -3/(-9/8)
x = 8/3
x = 8/3
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