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(2/3)*x+1/2 = 17/2-2*x // - 17/2-2*x
(2/3)*x-(-2*x)+1/2-(17/2) = 0
(2/3)*x+2*x+1/2-17/2 = 0
8/3*x-8 = 0 // + 8
8/3*x = 8 // : 8/3
x = 8/8/3
x = 3
x = 3
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