Question

The Pair of equations 5x - 15y = 8 and 3x +9y = 24/5 has:​

Answer 1

5x-15y=8...(i)

3x+9y=24/5...(ii)

In (i)5x=8+15y

      x=(8/5)+5y

Substituting x=(8/5)+5y in (ii)

3x+9y=24/5

3[(8/5)+5y)+9y=24/5

(24/5)+15y+9y=24/5

(24/5)+24y=24/5

24y=(24/5)-(24/5)

24y=0

y=0

Substituting y=0 in (i)

5x-15y=8

5x-0=8

5x=8+0

5x=8

x=8/5

y=0

x=8/5

I hope this helps