Question

If 2x-3y=12 and x/x+y =5/7 then what is the value of x-2y?

Answer 1

Answer:

• 2x-3y=12
• 2x=12+3y
• x=(12+3y)/2..............(1)

• x/x+y=5/7
• 7x=5x+5y
• x=5y/2.................(2)

• 12+3y=5y
• y=6

• x-2y=15-12=3