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## Answers

3/x + 4y = 5 -----------------(2)

multiply in equation (1) with 4 & in equation (2) with 5 and subtract

1/x = 3

x = 1/3

put x = 1/3 in equation (1)

12 + 5y = 7

y = -1

3/x + 4y =5.------------------->2

multiply equation 1 with 3 and the 2nd equation with 4

then we get

12/x + 15y = 21

12/x + 16y = 20

then subtracting both the above equations we get

-y = 1

⇒y = -1

substituting this in equation 1 we get

4/x + 5(-1) = 7

4/x -5 = 7

4/x = 12

x = 4/12

⇒x= 1/3

therefore x = 1/3 and y = -1