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(2*x)/5 = 4/3 // - 4/3
(2*x)/5-(4/3) = 0
(2*x)/5-4/3 = 0
2/5*x-4/3 = 0 // + 4/3
2/5*x = 4/3 // : 2/5
x = 4/3/2/5
x = 10/3
x = 10/3
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