Question

3 by X + 7 by Y is equal to 5 ,4 by x minus 3 by Y is equal to one upon two solve​

Answer 1

Step-by-step explanation:

3/x+7/y=5

3y+7x=5xy...eq.(1.)

4/x-3/y=1/2

8y-6x=1.xy...eq.(2.)

now you can solve it..

Answer 2

Answer:

simple substitution required