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math

posted by on .

2x-3y=12
x=4y+1
substitution, elemenation

  • math - ,

    in this case, substitution is your obvious choice
    sub the 2nd into the 1st.

    2(4y+1) - 3y = 12
    8y + 2 - 3y = 12
    5y = 10
    y = 2

    sub into the 2nd
    x = 4(2) + 1 = 9

    x = 9 , y = 2

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