Question

икс минус 1/6=7/9
игрик плюс 2/5=1/2

Answer 1

x-1/6=7/9y+2/5=1/2

x-1/6=1/2

7/9y+2/5=1/2

x=2/3

y=9/70

(x,y)=(2/3,9/70)

2/3-1/6=7/9×9/70+2/5=1/2

1/2=1/2=1/2

(x,y)=(2/3,9/70)