Question

1. Persamaan linear dua variabel
2×+3y=1
×-y=2
dengan menggunakan metode grafik, substitusi,eliminasi



Pakek caranya nya!!

Answer 1

Verified answer

2x + 3y = 1
x - y = 2 |×2
maka
2x + 3y = 1
2x - 2y = 4
-----------------(-)
5y = - 3
y = - 3/5

2x + 3y = 1
x - y = 2 |×3
maka
2x + 3y = 1
3x - 3y = 6
-----------------(+)
5x = 7
x = 7/5

hp = ( 7/5 , - 3/5 )