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3*x-(5*x)-8 = -26 // + 26
3*x-(5*x)-8+26 = 0
3*x-5*x-8+26 = 0
18-2*x = 0 // - 18
-2*x = -18 // : -2
x = -18/(-2)
x = 9
x = 9
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