Question

Bantu jawab pake cara

Answer 1

X - 2y = -6 diubah menjadi x = -6 + 2y

input ke pers satu lagi.
x + y - 12 = 0
(-6 + 2y) + y - 12 = 0
3y - 18 = 0
3y = 18
y = 18/3 = 6

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

jadi, hp = {6, 6}