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3*x+5/7 = 7/4-((2*x)/7) // - 7/4-((2*x)/7)
3*x+(2*x)/7+5/7-(7/4) = 0
3*x+(2*x)/7+5/7-7/4 = 0
23/7*x-29/28 = 0 // + 29/28
23/7*x = 29/28 // : 23/7
x = 29/28/23/7
x = 29/92
x = 29/92
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