Question

Please can you
tell answer

Answer 1

2y+3x-11=0

5y-4y+7=0

a¹=2. b¹=3. c³=-11

a²=-4 b²=-4 c³=7

a¹=1. b²=3

a²=-2. b²=-4

a¹≠b¹

a² b²

Answer 2

Answer:

First of all,

Replace 1/x and 1/y with m and n

Now, the equation become :

2m+3n=11 ___(i)

5m-4n= -7 ____(ii)

Now multiply i by 4 and ii by 3

Then, the equation become :

8m +12n=44

And 15m-12n= -21

Now, add both of the above :

8m+12n+15m-12n=44-21

23m=23

M=1

Now, put m=1 in (i),

We get n=3

Now, m=1/x, => 1=1/x =>x=1

And n=1/y =>3=1/y=>y =1/3

Now, value of 5x-3y=5-1=4

Answer is 4