Question

solve 4/x+5/y=3, 6/x-10/y=1

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Answer 1

Answer:

sub 1/x=u, 1/y=v

4u + 5v = 3 .....(1)

6u - 10v = 1.....(2)

(1)×2

8u + 10v = 6.....(3)

(3)+(2)

14u=7

u=1/2............x=2

v=1/5..........y=5

Step-by-step explanation:

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Answer 2

Answer:

this question done by using reducing method ch 3

let 1/x= m

and 1/y=n

Step-by-step explanation:

so equation will be 4m+5n=3 (eq 1)

and 6m-10n=1(eq 2)

multiply both the side by 2 in equation 1 so

8m+10n=6

6m-10n=1

14m=7

m= 1/2

put the value of m in equation 1

value of n=1/5

We let 1/x =m

1/x= 1/2

x=2

similarly

1/y=1/5

y=5

hence the value of x =2

and the value of y=5