Reply To: i need help on how to solve this problem

  • Wuche Innocent

    Member
    July 14, 2022 at 12:51 pm

    X+y=20….(1)

    2x+y=22…(2)

    Using elimination method, subtract eqn(1) from (2).

    2x-x +y-y=22-20

    X=2.

    Solving for y in eqn(1); substitute the value of X=2

    2+y=20

    Y=20-2

    Y=18

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