Question

15x+17y=21;17x+15y=11 then find value of x and y​

Answer 1

Answer:

15x+17y-21=0--- equation 1

17x+15y-11=0--- equation 2

using substitution method:

15x+17y-21=0

x=21-17y/15

putting the value of x in equation 2

17(21-17y/15)+15y-11=0

192-64y=0

y=-192/-64

y=3

putting the value of y in equation 1

15x+17(3)-21=0

15x+30=0

x=-30/15

x=-2

so, the value of x is -2 and y is 3

Answer 2

Answer:

I hope it helps you....

peace ✌☺️