Question

Solve using Cramer's rule
$\frac{1}{x} + \frac{1}{y} = 12 . \: \: \: \frac{3}{x} - \frac{2}{y} = 1$

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Answer 1

Step-by-step explanation:

let 1/x be a

and let 1/y be b

a+b=12

3a-2b=1

a+b=12

a=12-b

3(12-b)-2b=1

36-3b-2b=1

-5b=1-36

-5b=-35

b= -35/-5

b=7

a=12-b

a=12-7

a=5

a=1/x b=1/y

x=1/a y=1/b

x=1/5 y=1/7

Answer 2

Answer:

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