Himpunan penyelesaian dg subtitusi: x-y-2=0 X-2y-10=0

Materi : SPLDV

x - y - 2 = 0
=> x = 2 + y

x - 2y - 10 = 0
=> x - 2y = 10

x = 2 + y
x - 2y = 10

Substitusi Nilai X !

x - 2y = 10
2 + y - 2y = 10
2 - y = 10
-y = 10 - 2
-y = 8
y = -8

x = 2 + y
x = 2 + (-8)
x = 2 - 8
x = -6

Hp = { -6 , -8 }