Question

solve the following system of equation by using the cross multiplication method. 2/x+3/y=13. 5/x-4/y=-2. ​

Answer 1

Answer:

2/x+3/y=13   5/x-4/y=-2

2/x=3/y=13

5/x-4/y=-2

2/x+3/y=13......(1)

5/x-4/y=-2.......(2)

.

let 1/x=u, 1/y=v

2u+3v=13...(3)

5u-4v=-2......(4)

hence our equations are

2u+3v=13.....(3)

5u-4v=-2......(4)

hope this helps you............