Himpunan penyelesaian sistem persamaan x+2y=10 2x+3y=6 adalah??

X+2y=10 → x = 10 – 2y
2x+3y=6
2(10 – 2y) + 3y = 6
20 – 4y + 3y = 6
– ( 4 – 3 )y = – (20 – 6)
– y = – 14
y = 14

x = 10 – 2y
x = 10 – 2(14) = 10 – 28 = -18

HP = { – 18 , 14 }