Question

Q. Solve the following (Any 1)

1.
$\frac{4}{p \: } + \frac{5}{q} = 7 \: \: \: \: and \: \: \: \: \: \frac{3}{p} + \frac{4}{q } = 5$

2.
$\frac{2}{m} + \frac{2}{3n \: } = \frac{1}{6} \: \: \: \: \: and \: \: \: \frac{3}{m} + \frac{2}{n} = 0$
​

Answer 1

step by step answer has been sent to you

Answer 2

Answer:

4/p+5/q =7 and 3/p+4/q= 5

let 1/p =a and 1/q = b

4a+5b=7 and 3a+4b=5

using elimination method

4a+5b=7

3a+4b=5

3(4a+5b=7)

4(3a+4b=5)

12a+15b=21

12a+16b=20

- - -

-1b= 1

therefore b =-1 now 12a+15(-1) = 21

12a-15=21

12a= 36

a=3

now 1/p = 1 and 1/q= 1/3