Question

plzz answer question no. 4 and 5

plzz help its urgent​

Answer 1

(4)

5m-3n=19.......(I)

5m-3n=19.......(I)m-6n=-7.......(ii)

By multiplying the second equation by 5

5m-30n=-35

By subtracting the first from the third equation,

-27n=-54

n=2

m=5

(5)

5x+2y=-3

x+5y=4

By multiplying the second equation by 5

5x+25y=20

By subtracting the first equation from the third equation,

23y=23

y=1

x=-1