himpunan penyelesaian 2x +y = 10 dan x+3y = 10

2x +y = 10 |×1
x+3y = 10 |×2
------------------
2x +y = 10
2x + 6y = 20
------------------- —
-5y = - 10
y = 2
x = (10 - 2)/2
x = 4

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

x+3y= 10
x+3(10-2x)=10
x+30-6x=10
x-6x=10-30
-5x=-20
x=-20/-5
x=4

y=10-2x
y=10-2(4)
y=10-8
y=2

hp = {4,2)