Question

4 upon X + 3 upon Y is equal to 16 upon x minus 15 upon Y is equal to 8​

Answer 1

Answer:

4/x+3/y=16/x-15/y

4y/x+3=16y/x-15

4y(x-15)=16y(x+3)

4xy-60y=16xy+48y

4xy-16xy=48y+60y

-12xy=108y