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(3/5)*x+1 = 6*x-(79/20) // - 6*x-(79/20)
(3/5)*x-(6*x)+79/20+1 = 0
(3/5)*x-6*x+79/20+1 = 0
99/20-27/5*x = 0 // - 99/20
-27/5*x = -99/20 // : -27/5
x = -99/20/(-27/5)
x = 11/12
x = 11/12
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