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4*x-(3/7)-1 = (6/5)*x // - (6/5)*x
4*x-((6/5)*x)-(3/7)-1 = 0
4*x+(-6/5)*x-3/7-1 = 0
14/5*x-10/7 = 0 // + 10/7
14/5*x = 10/7 // : 14/5
x = 10/7/14/5
x = 25/49
x = 25/49
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