Question

solve plz by elimination method 4x+9y=30xy and 5y - 3x = xy​

Answer 1

Answer:

4x+9y=30xy........(1)

5y-3x=xy..............(2)

Multiplying equation (1) by 3 and (2) by 4 we get,

12x+27y=90xy..........(3)

20y-12x=4xy..............(4)

Adding equations (3) &(4) we get,

47y=94xy.

y=94xy/47

y=2xy

2xy=y

2x=y/y

2x=1

x=1/2

and y =1