Question

1/x +1/y =7 , 2/x+3/y=17 (x≠0,y≠0) cross multiplication​

Answer 1

Answer:

x=1/3

y=1/4

Step-by-step explanation:

1/x+1/y=7 ....eq1

2/x+3/y=17  ....eq2

multiply eq1 by 2

2/x+2/y=14 ....eq3

eq3-eq2

(2/x+2/y)-(2/x+3/y)=14-17

2/y-3/y=-3

-1/y=-3

y=1/3

putting y=1/3

1/x+1/(1/3)=7

1/x+3=7

1/x=7-3

1/x=4

x=1/4