Question

Eliminasi dari -2 = 2a+b dan 13 = -3a+b

Answer 1

 2a + b =  -2
-3a + b = 13
___________ - 

5a = -15
a = -15/5
a = -3

Masukkan nilai a ke:
2a + b = -2
2(-3) + b = -2
-6 + b = -2
b = -2 + 6
b = 4