Let the two nos be x and y
x-4-3y=0------1------
x+y+5=25------2------
taking eqn1
x=4+3y------3------
put this value of x in eqn 2 we get
4+3y+y+5=25
4y+9=25
4y=16
y=4
to find the value of x put y=4 in eqn 3
x=4+12
x=16
hence nos are 4 and 16
x-4-3y=0------1------
x+y+5=25------2------
taking eqn1
x=4+3y------3------
put this value of x in eqn 2 we get
4+3y+y+5=25
4y+9=25
4y=16
y=4
to find the value of x put y=4 in eqn 3
x=4+12
x=16
hence nos are 4 and 16