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15 April, 10:16

Which ordered pair is the best estimate for the solution of the system of equations? y = - 1/5x + 1 y = x + 4

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  1. 15 April, 10:41
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    Given system of equation:

    y=-1/5x + 1 Equation 1

    y=x+4 Equation 2

    Substitute value of y in equation 2.

    x+4=-1/5x+1

    Multiply both sides by 5.

    5x+20=-x+5

    Add x to both sides

    6x+20=5

    Subtract 20 from both sides

    6x=-15

    x=-15/6

    x=-5/2

    Now substitute value of x in equation 1.

    y=-1/5 (-5/2) + 1

    y=1/2+1

    y=3/2

    Solution is (x, y) = (-5/2, 3/2)
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