Question

3x-5y=20,7x+2y=17 find x and y

Answer 1

3x-5y=20
putting y =4 we get,
3x-5*2=20
3x-10=20
3x=20+10
3x=30
x=30/3
x=10

similarly...

7x+2y=17
we put x=2
7*2+2y=17
14+2y=17
2y=17-14
2y=3
y=3/2


i hope u find this answer helpful...
mark it as brainilist...