решите уравнение:1)x=2/3x+1;2)x-1/2=3/4x;3)x-2/3=5/6x;4)1(целая) 4/5y=y+4;5)2/3y-1/3=5/9y;6)3/4y-2/3=7/12y.

х=2/3х+1х-2/3х=13/3х-2/3х=11/3х=1х=1÷1/3х=1/1×3/1х=3/1         х=3х-1/2=3/4хх-3/4х=1/24/4х-3/4х=1/21/4х=1/2х=1/2÷1/4х=1/2×4/1х=1/1×2/1х=2/1             х=2х-2/3=5/6хх-5/6х=2/36/6х-5/6=2/31/6х=2/3х=2/3÷1/6х=2/3×6/1х=2/1×2/1х=4/1             х=41 4/5у=у+41 4/5у-у=44/5у=4у=4÷4/5у=4/1×5/4у=1/1×5/1            у=52/3у-1/3=5/9у2/3у-5/9у=1/36/9у-5/9у=1/31/9у=1/3у=1/3÷1/9у=1/3×9/1у=1/1×3/1у=3/1                 у=33/4у-2/3=7/12у3/4у-7/12у=2/39/12у-7/12у=2/32/12у=2/31/6у=2/3у=2/3÷1/6у=2/3×6/1у=2/1×2/1у=4/1                у=4