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    Sample algebra questions (using the addition method)

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    Solve each system by the addition method

    # 9 x - y = 12
    2x + y = 3

    # 10 x - 2y = 1
    -- x + 5y = 4

    # 11 2x - y = 5
    3x + 2y = 3

    # 12 3x + 5y = 11
    x - 2y = 11

    # 18 x + y= 13
    22x + 36y = 356

    Solve each system by the addition method. Determine whether the equations are independent, dependent, or inconsistent.

    # 19 3x - 4y = 9
    --3x + 4y = 12

    # 20 x -- y = 3
    --6x + 6y = 17

    # 23 2x - y = 5
    2x + y = 5

    # 24 -- 3x + 2y = 8
    3x + 2y = 8

    Solve each system by the addition method

    # 28 x y 5
    -- -- -- = -- --
    3 2 6
    X y 3
    -- -- -- = -- --
    5 3 5

    # 29 1 1
    --x + -- y = 5
    8 4
    1 1
    -- --x + --y = 7

    # 30 3 5
    --x + --y = 27
    7 9
    1 2
    --x + --y = 7
    9 7

    # 40 Low fat yogurt. Ziggy`s Famous yogurt blends regular yogurt that is 3% fat with its no-fat yogurt to obtain low-fat yogurt that is 1% fat How many pounds of regular yogurt and how many pounds of no-fat yogurt should be mixed to obtain 60 pound of low-fat yogurt?

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