slove by substitute 3x-2y=12 2x y=1

  1. profile image48
    trinigirl001posted 7 years ago

    slove by substitute
    3x-2y=12
    2x y=1

  2. Patty Inglish, MS profile image93
    Patty Inglish, MSposted 7 years ago

    Solve the second equation for either X or Y and substitute that expression into the first equation. Then determine both X and Y.

  3. chicagoguy profile image75
    chicagoguyposted 6 years ago

    3x-2y=12

    3x= 12+2y

    x = (12+2y)/3

    Now put this value in
    2x -y =1  not sure if that is + or -

    2(12+2y)/3-y = 1

    (24+4y)/3-y=1
    24+4y-3y=3
    24+y =3
    y=3-24
    y=-21

    and then calculate x
    let me know if you got problems

 
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