y = x + 3 dan x + 3y = - 9
Matematika
taufik322
Pertanyaan
y = x + 3 dan x + 3y = - 9
2 Jawaban
-
1. Jawaban gabriellodwi
y = x + 3 dan 3y = -x + 9 -
2. Jawaban guiwico
x-y=-3
x+3y=-9
dikurang
-4y=6
y=6/-4
y=-3/2
substitusi
x-y=-3
x-(-3/2)=-3
x+3/2=-3
x=-3-3/2
x=-9/2