solving with elimination ! non standard form HELP!?

3x - 5y = -7

9x + 7y = 89

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  • 8 years ago

    multiply number one with 3. Then we have:

    9x-15y=-21

    9x+7y=89

    Draw number one from number two.

    22y=110 is the result.

    y=110/22=5.

    Then we put y=5 into number one and get:

    3x-15*5=-7

    3x=75-7=68

    x=68/3=22.667

  • 8 years ago

    Are yu looking for x?

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