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(4/5)*x+8/5 = (7/4)*x+53/20+1/4 // - (7/4)*x+53/20+1/4
(4/5)*x-((7/4)*x)+8/5-(53/20)-(1/4) = 0
(4/5)*x+(-7/4)*x+8/5-53/20-1/4 = 0
-19/20*x-13/10 = 0 // + 13/10
-19/20*x = 13/10 // : -19/20
x = 13/10/(-19/20)
x = -26/19
x = -26/19
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