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Posted by on Wednesday, April 24, 2013 at 9:29am.

15. In the following system of equations, what does x equal?
-10x + 4y = -64
-10x - 8y = -112

  • 10 grade algebra - , Wednesday, April 24, 2013 at 9:33am

    -10x + 4y = -64
    -10x - 8y = -112

    -20 x + 8 y = -128
    -10 x - 8 y = -112
    ___________________

    -30 x + 0 y = -232

    x = 232/30 = 116/15

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