Question

Tentukan himpunan penyelesaian sistem persamaan linear tiga variabel tersebut

Tolong di jawab yang benar ya ka

Answer 1

Verified answer

Bab Persamaan Linear
Matematika SMA Kelas X

y = -1

3x + 2y = 7
3x + 2 . (-1) = 7
3x - 2 = 7
3x = 7 + 2
x = 9/3
x = 3

4x - 3y + 2z = 11
4 . 3 - 3 . (-1) + 2z = 11
12 + 3 + 2z = 11
2z = 11 - 15
z = -4/2
z = -2

HP = { (3, -1, -2) }