Multiply the bottom equation by -3, getting 18x - 15y = -9
When you combine that with the other equation you get 30x = 25
You now divide 25 by 30 and get x = 25/30. When you plug that into the bottom equation you get -6(25)/30 + 5y = 3, which simplifies out to 5y =8, which further simplified to y = 8/5. Therefore the final equation is x = 25/30 and y= 8/5