tolong dibantu kerjain makasih

x = 10+3y
3(10+3y)+3y=16
30+9y+3y=16
12y=-14
y= -14/12
y= - 7/6

x-3(-7/6)=10
x=20/2-7/2
x=13/2

x - 3y = 10
3x + 3y = 16
________-
-2x = -6
x= -6/-2
x= 3

x-3y=10
3-3y=10
-3y=10-3
y=7/-3
y=-7/3

Jadi, x=3 dan y= -7/3