Question

solve the equation..plzz​

Answer 1

Step-by-step explanation:

ok l will answer as soon as possible

Answer 2

Answer:

x= 1/3 and y = 1/4

Step-by-step explanation:

Given,

1/16x + 1/15y = 9/20

Multiplying both side by 240,

16/x + 15/y = 108.... (i)

1/20x -1/27y = 4/45

Multiplying both side by 540,

20/x - 27/y = 48....(ii)

Now,

Let a = 1/x and b = 1/y,

From above,

16a+15b = 108....(iii)

20a-27b = 48....(iv)

Calculating  eqns (iii)*5 + (iv)*4,

(16a+15b)*5 + (20a-27b)*4 = (108*5) + (48*4)

75a + 80b + 108a - 80b = 540 + 192

183a = 732

a = 4

Putting the value of a in eqns (iii),

15*(4) + 16b = 108

60 + 16b = 108

16b = 108 - 60

16b = 48

b = 48 / 16

b = 3

since,

a = 1/x

4 = 1/x

x = 1/4

b = 1/y

3 = 1/y

y = 1/3