Реши уравнение: х=2/3х+1, х-1/2=3/4х, х-2/3=5/6х, 1 4/5у=у+4, 2/3у-1/3=5/9у, 3/4у-2/3=7/12у,
Х = 2/3х + 1 х - 2/3х = 1 1/3х = 1 х = 1 : 1/3 х = 3 х - 1/2 = 3/4х х - 3/4х = 1/2 1/4х = 1/2 х = 1/2 : 1/4 х = 2 х - 2/3 = 5/6х х - 5/6х = 2/3 1/6х = 2/3 х = 2/3 : 1/6 х = 4 1 4/5у = у + 4 1 4/5у - у = 4 4/5у = 4 у = 4 : 4/5 у = 5 2/3у - 1/3 = 5/9у 2/3у - 5/9у = 1/3 1/9у = 1/3 у = 1/3 : 1/9 у = 3 3/4у - 2/3 = 7/12у 3/4у - 7/12у = 2/3 1/6у = 2/3 у = 2/3 : 1/6 у = 4