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18 = ((2/3)*x-25)/2 // - ((2/3)*x-25)/2
18-(((2/3)*x-25)/2) = 0
(-1*(2/3*x-25))/2+18 = 0
(-1*(2/3*x-25))/2+(2*18)/2 = 0
2*18-1*(2/3*x-25) = 0
61-2/3*x = 0
(61-2/3*x)/2 = 0
(61-2/3*x)/2 = 0 // * 2
61-2/3*x = 0
61-2/3*x = 0 // - 61
-2/3*x = -61 // : -2/3
x = -61/(-2/3)
x = 183/2
x = 183/2
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