1) х = 2/3х + 1 х - 2/3х = 1 1/3 х = 1 х = 1 : 1/3
х = 32) х - 1/2 = 3/4х х - 3/4х = 1/2 1/4х = 1/2 х = 1/2 : 1/4
х = 23) х - 2/3 = 5/6х х - 5/6х = 2/3 1/6х = 2/3 х = 2/3 : 1/6
х = 44) 1 4/5у = у + 4 1 4/5у - у = 4 4/5у = 4 у = 4 : 4/5
у = 55) 2/3у - 1/3 = 5/9у 2/3у - 5/9у = 1/3 6/9у - 5/9у = 1/3 1/9у = 1/3 у = 1/3 : 1/9
у = 36) 3/4у - 2/3 = 7/12у 3/4у - 7/12у = 2/3 9/12у - 7/12у = 2/3 2/12у = 2/3 у = 2/3 : 2/12
у = 4