sum is 15 and the difference is-9
Answers
Answered by
4
x+y=15.......1
x-y=-9 ........2
adding 1 and 2
2x= 6
x= 3
put x =3.in equation 1
3+y=15
y =15-3
y=12
x-y=-9 ........2
adding 1 and 2
2x= 6
x= 3
put x =3.in equation 1
3+y=15
y =15-3
y=12
Answered by
1
x+y= 15
x-y= -9
+
_______
2x+0y=6
2x=6
x=6/2=3
x-y= -9
+
_______
2x+0y=6
2x=6
x=6/2=3
Similar questions