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(2/5)*x+7/5 = (5/4)*x+47/20+1/4 // - (5/4)*x+47/20+1/4
(2/5)*x-((5/4)*x)+7/5-(47/20)-(1/4) = 0
(2/5)*x+(-5/4)*x+7/5-47/20-1/4 = 0
-17/20*x-6/5 = 0 // + 6/5
-17/20*x = 6/5 // : -17/20
x = 6/5/(-17/20)
x = -24/17
x = -24/17
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