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(4*x)/7+2/5 = (-2*x)/5+3/1 // - (-2*x)/5+3/1
(4*x)/7-((-2*x)/5)+2/5-(3/1) = 0
(4*x)/7+(2/5)*x+2/5-3 = 0
34/35*x-13/5 = 0 // + 13/5
34/35*x = 13/5 // : 34/35
x = 13/5/34/35
x = 91/34
x = 91/34
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