Question

Diketahui sistem persamaan y - 2x = 1 dan 3x - 5y = 16, hitung himpunan penyelesaiannya !

Answer 1

Verified answer

Maap klo jawabannya salahh

Answer 2

Y - 2x = 1
y = 2x + 1
disubtitusi ke pers :
3x - 5y = 16
3x - 5(2x + 1) = 16
3x - 10x - 5 = 16
- 7x = 16 + 5
- 7x = 21
x = - 3
disubtitusi ke pers :
y = 2x + 1
y = 2(-3) + 1
y = - 6 + 1
y = - 5

hp = {-3 , -5}