Question

x + 2y = 10 dan 1 per 2 x - y = -1

Answer 1

Step-by-step explanation:

x+2y=10. (1)

2x-y=-1 (2)

solution:-

(1)+2(2)

x+2y=10

+4x-2y=-2

5x=8

x=8/5

y=21/5