3x-5y=20,7x+2y=17 find x and y
ShashankAggarwal:
y=445/205&x= 125/41
I got x = 125/41, y = -89/41.
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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
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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...
this is wrong
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