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3*x-(5/2) = -8 // + 8
3*x-(5/2)+8 = 0
3*x-5/2+8 = 0
3*x+11/2 = 0 // - 11/2
3*x = -11/2 // : 3
x = -11/2/3
x = -11/6
x = -11/6
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