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(2/5)*x+2/3 = 29/30 // - 29/30
(2/5)*x+2/3-(29/30) = 0
(2/5)*x+2/3-29/30 = 0
2/5*x-3/10 = 0 // + 3/10
2/5*x = 3/10 // : 2/5
x = 3/10/2/5
x = 3/4
x = 3/4
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