Решите 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,...

Question

Решите 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.

Answer 1

X=2/3x+1
x-2/3x=1
1/3x=1
x=3

x-1/2=3/4x
x-3/4=1/2
1/4x=1/2
x=2

x-2/3=5/6x
x-5/6x=2/3
1/6x=2/3
x=4

1 4/5y=y+4
1 4/5y-y=4
4/5y=4
y=5

2/3y-1/3=5/9y
2/3y-5/9y=1/3
1/9y=1/3
y=3

3/4y-2/3=7/12y
3/4y-7/12y=2/3
9/12y-7/12y=2/3
1/6y=2/3
y=4