nilai {(1,2)} merupakan himpunan penyelesaian dari sistem persamaan linear ax + by = 5 dan 5x + ay = 8, nilai dari a dan b berturut-turut adalah

Materi SPLDV
ax + by = 5 => a + 2b = 5
5x + ay = 8 => 5 + 2a = 8 => 2a = 3 => a = 3/2
Karena a = 3/2, maka
a+2b=5=> 3/2 + 2b = 5
2b = 5 - 3/2 = 7/2
b = 7/2 × 1/2 = 7/4
Jadi,
a = 3/2 dan b = 7/4

a x by = 5-> a + 2b = 5
5X + ay = 8 = a + 2 a= 3 + 2 = 3/2

2b=5 - 3/2=7/2

b=7/2 x 1/2 =-> 7/4 =b + 3/2 = 7/4
maaf kalo salah