Multiply the bottom equation by 2, which will equal -6x+10y=18. The 6x and -6x will cancel each other out leaving you to add 10y and 2y which equals 12y and 18 plus 18 is 36 the divide 36 by 12 to get 3 which the y=3 then put 3 for the y in the first equation multiply it by the number in front of it (2) which your equation should look like 6x+6=18.subtract 18 by 6=12 the divide 12 by 6 to get 2.So x=2. So your coordinate pair should be (2,3) which is your answer