" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x + y = 10 [x3]
6x + 3y = 15 [x3]
Menjadi:
6x + 3y = 30
6x + 3y = 15
- - Kurangi - -
0 = 15 (Tidak ada penyelesaian)
Maka,
HP = { }
Bagian b. (Jika terjadi kesalahan soal, harap beritahu)
Persamaan 1 kalikan 18, menjadi:
9x + 18y = 10 [x1]
Persamaan 2 kalikan 6, menjadi:
24x - 3y = 50 [x6]
Sehingga,
9x + 18y = 10
144x - 18y = 300
- - Jumlahkan - -
153x = 310
x = 310/153
Sehingga,
9x + 18y = 10
9(310/153) + 18y = 10
310/17 + 18y = 10
18y = (170-310)/17
18y = -140/17
y = -140/17.18
y = -70/153
HP = {310/153, -70/153}
Bagian c.
Persamaan 1 kalikan 6, menjadi:
6x - 2y = 5 [x2]
Persamaan 2 kalikan 12, menjadi:
4x - 3y = 5 [x3]
Menjadi:
12x - 4y = 10
12x - 9y = 15
- - Kurangi - -
5y = -5
y = -1
Sehingga,
4x - 3y = 5
4x - 3(-1) = 5
4x + 3 = 5
4x = 2
x = 1/2
Maka,
HP = {1/2, -1}
Bagian d.
x - 2y = 7 [x2]
3x - 4y = 1
Menjadi,
2x - 4y = 14
3x - 4y = 1
- - Kurangi - -
-x = 13
x = -13
Sehingga,
x - 2y = 7
-13 - 2y = 7
-2y = 20
y = -10
HP = {-13.-10}