tolong kerjain sekarang juga ya

@
2x - y  = 2
x = -2
2(-2) - y = 2
-4 - y = 2
y  = -4- 2
y1 = -6

x + y = 10
x = -2
-2 + y = 10
y2 = 12
jarak y1 ke y2 =a =  |y1-y2| = |-6-12| = 18

2x - y = 2
x + y = 10
........+.....
3x = 12
x1 = 4
jarak x = -2 ke x1 =4 = t =|-2-4| =|-6| = 6
luas = 1/2 a t
L = 1/2 (18)(6) = 54 satuan