Question

solve the following pairs of equations by reducing them to a pair of linear equation 1 by x minus 4 by y equal to 2 and 1 by x+3by y

equal to 9

Answer 1

Answer:

sorry dear

Step-by-step explanation:

sorry agar ATA hota to BATA dety so sorry

Answer 2

Step-by-step explanation:

The equations are:

$\frac{1}{x} - \frac{4}{y} = 2 \: and \: \frac{1}{x} + \frac{3}{y} = 9$

Now, let us split the terms:

$\frac{1}{x} - 4 \times \frac{1}{y} = 2 \: and \\ \: \frac{1}{x} + 3 \times \frac{1}{y} = 9$

Let 1/x=p and 1/y=q

Now equation becomes:

p-4q=2 and p+3q=9

By elemination method:

p-4q-p-3q=2-9

-7q=-7

q=1

Substitute q in any one equation:i.e.,

p-4(1)=2

p=2+4=6.

Now,

p=6=1/x

x=1/6.

q=1=1/y

y=1/1=1.