Question

5x+10y=20,20x20y=40​

Answer 1

Heya mate..here is ur answer..

Answer 2

5x+10y=20

5x=20-10y

x=20-10y/5

20x+20y=40

20(20-10y/5)+20y=40

80-40y+20y=40

60y=-40

y=-2/3

x=20-10(-2/3)/5

x=20+20/3/5

x=60+20/3/5

x=80/15

x=16/3