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How do I solve this For (-x)?
(Do I just make -x equal 1 or 2?) I’m suppose to solve the equation by elimination. (Can someone give me steps to solving it and I’ll try to do it and you guys check my work?)

  • Algebra -

    multiply the 1st equation by -2, then add the result to the 2nd equation
    ... this will eliminate y

    solve the subsequent equation for x

  • Algebra -

    I tried doing that but I think I went wrong somewhere because I did




    And got -x-0y=-3

    ...I know this is wrong, can someone help me

  • Algebra -

    you lost the minus sign on the 14

    you did this ... -2•9=-18
    ... the 9 was negative
    ... to give a positive 18 for cancelling with the -18 in the 2nd equation

    should end up ... -15x = -45

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