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(2/7)*x+2/5 = 24/35 // - 24/35
(2/7)*x+2/5-(24/35) = 0
(2/7)*x+2/5-24/35 = 0
2/7*x-2/7 = 0 // + 2/7
2/7*x = 2/7 // : 2/7
x = 2/7/2/7
x = 1
x = 1
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