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75*(x/60) = 75*(x+11/60) // - 75*(x+11/60)
75*(x/60)-(75*(x+11/60)) = 0
75*(x/60)-75*(x+11/60) = 0
(5*x)/4-75*(x+11/60) = 0
(-75*4*(x+11/60))/4+(5*x)/4 = 0
5*x-75*4*(x+11/60) = 0
-295*x-55 = 0
(-295*x-55)/4 = 0
(-295*x-55)/4 = 0 // * 4
-295*x-55 = 0
-295*x-55 = 0 // + 55
-295*x = 55 // : -295
x = 55/(-295)
x = -11/59
x = -11/59
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