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-   -   Algebra II, substitutuion (https://www.askmehelpdesk.com/showthread.php?t=144190)

  • Oct 23, 2007, 07:14 PM
    GetCrunk555
    Algebra II, substitutuion
    Could you help me with this eqatution all the way through because I keep getting the wrong answer the answer is suppose to be (-3,1/2)

    the equation is

    4x+6y=-9
    2x-10y=-1


    please help :D
  • Oct 23, 2007, 07:28 PM
    GetCrunk555
    help meeeeeeeeeee
  • Nov 5, 2007, 05:55 PM
    nugget302
    what is the substitution for f(x)=2x-6 using 1 for x
  • Nov 29, 2007, 10:00 PM
    eaca1234
    Concentrate first on a single one of the two equations.
    Isolate one of the variables in that equation.
    Substitute that number in where the same variable appears in the second equation.
  • Dec 4, 2007, 04:17 PM
    barbiebrat
    I am a feshman and I need help does any body no how to determine whether the ordered pair is a solution of the equation y=2x+1,(5, 11)
  • Dec 4, 2007, 06:02 PM
    s_cianci
    For your first question, it's actually a lot easier if you combine the equations so as to eliminate one of the variables, then solve for the other. For your second question, plug in 5 for x and see if y turns out to be 11 when you do.

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