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28 November, 07:44

X+240y=88 4x+160y=152

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  1. 28 November, 10:23
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    We can use elimination for this system of equations.

    4x+160y=152

    X+240y=88

    Let's multiply the second equation by - 4 to eliminate the second equation.

    4x+160y=152

    -4x-960y=-352

    -800y=-200

    Let's divide.

    -200:-800

    -2:-8

    0.25=y

    Let's plug it into an equation.

    x+60=88

    X=28

    Let's make sure this is the answer by plugging both numbers into the second equation.

    4 (28) + 160 (0.25) = 152

    112+40

    152

    So, X=28 and Y=0.25.
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