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(2/3)*x-(5/3) = 8 // - 8
(2/3)*x-(5/3)-8 = 0
(2/3)*x-5/3-8 = 0
2/3*x-29/3 = 0 // + 29/3
2/3*x = 29/3 // : 2/3
x = 29/3/2/3
x = 29/2
x = 29/2
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