J jamjam New member Joined Jan 31, 2010 Messages 22 Mar 7, 2010 #1 With this problem I came up with this: 3x + y =13 2x +9y = -8 2x + 9(13 - 3x) = -8 2x + 117 - 27x = -8 - 117 90x = 125 After this I'm lost Please HELP!
With this problem I came up with this: 3x + y =13 2x +9y = -8 2x + 9(13 - 3x) = -8 2x + 117 - 27x = -8 - 117 90x = 125 After this I'm lost Please HELP!
mmm4444bot Super Moderator Joined Oct 6, 2005 Messages 10,958 Mar 7, 2010 #2 ? jamjam said: 2x + 9(13 - 3x) = -8 2x + 117 - 27x = -8 - 117 We may not subtract 117 from only one side of the equation. Did you make a typographical error ? 90x = 125 90x is not correct. What is 2 minus 27 ? Click to expand...
? jamjam said: 2x + 9(13 - 3x) = -8 2x + 117 - 27x = -8 - 117 We may not subtract 117 from only one side of the equation. Did you make a typographical error ? 90x = 125 90x is not correct. What is 2 minus 27 ? Click to expand...
