titik potong antara y=4x-11dengan garis 3y=-2x-5 adalah

y = y
4x - 11 = (-2x - 5)/3
Kali silang
12x - 33 = -2x - 5
12x + 2x = 33 - 5
14x = 28
x = 2

y = 4x - 11
y = 8 - 11
y = -3

Titik potong = (2,-3) ✓

Kelas 8 Matematika
Bab 4 - SPLDV

3y = -2x - 5
3 (4x - 11) = -2x - 5
12x - 33 = -2x - 5
12x + 2x = -5 + 33
14x = 28
x = 28/14
x = 2

y = 4x - 11
y = 4 . 2 - 11
y = 8 - 11
y = -3

Titik potong (2, -3)