Question

Selesaikan spl dua variabel dgn metode sunsitusi x + 5y =5 dan 3 x - 5y = 15

Answer 1

Verified answer

X + 5y = 5 ⇔ x = 5 - 5y ... (1)
3x - 5y = 15 ... (2)

Substitusi (1) ke (2)
3(5 - 5y) - 5y = 15
15 - 15y - 5y = 15
y = 0

x = 5 - 5(0)
x = 5