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Use the elimination method to solve the system of equations
5u+2v=15
3u+v=-7

  • Math -

    1st one: 5u + 2v = 15
    double the 2nd: 6u + 2v = -14

    subtract them:
    -u = 29
    u = -29

    sub into 2nd:
    3(-29) + v = -7
    v= -7 + 87 = 80

    u = -29 , v = 80

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