Помогите срочно уравнениЕ У+2/7=1/3;х-1/6=7/9

Question

Помогите срочно уравнениЕ У+2/7=1/3;х-1/6=7/9

Answer 1

1)y+2/7=1/3
y= 1/3 - 2/7
y= 1/21

2)x-1/6=7/9
x= 7/9+1/6
x= 17/18

Answer 2

1)y=-2/7+1/3
y=-6/21+7/21
y=1/21
2)x=1/6+7/9
x=3/18+14/18
x=17/18