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(4*x)/15-(x/12)-x = (-44*x-5)/60 // - (-44*x-5)/60
(4*x)/15-((-44*x-5)/60)-(x/12)-x = 0
(-1*(-44*x-5))/60+(4*x)/15-x/12-x = 0
(-1*12*15*(-44*x-5))/(12*15*60)+(4*12*60*x)/(12*15*60)+(15*60*(-x))/(12*15*60)+(12*15*60*(-x))/(12*15*60) = 0
4*12*60*x-1*12*15*(-44*x-5)+15*60*(-x)+12*15*60*(-x) = 0
10800*x-900*x-10800*x+900 = 0
9900*x-10800*x+900 = 0
900-900*x = 0
(900-900*x)/(12*15*60) = 0
(900-900*x)/(12*15*60) = 0 // * 12*15*60
900-900*x = 0
900-900*x = 0 // - 900
-900*x = -900 // : -900
x = -900/(-900)
x = 1
x = 1
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