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16 October, 19:55

Ahmed is taking orders for lunch. A sliceof pizza cost $2.1 and a chichen sandwich cost $3.1. He collects $22.8 for the group of 8 people

Let x=number of pizza orders let

y=number of chicken orders

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  1. 16 October, 20:09
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    X + y = 8

    2.1x + 3.1y = 22.8

    -2.1x - 2.1y = - 16.8

    2.1x + 3.1y = 22.8

    y = 6 chicken orders

    x + 6 = 8

    x = 2 pizza orders
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