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(2/5)*x-(8/9) = 7/3 // - 7/3
(2/5)*x-(8/9)-(7/3) = 0
(2/5)*x-8/9-7/3 = 0
2/5*x-29/9 = 0 // + 29/9
2/5*x = 29/9 // : 2/5
x = 29/9/2/5
x = 145/18
x = 145/18
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