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6 July, 08:19

The solution to the following system of linear equations lies in which quadrant? - 2x + 3y = 8 4x + y = - 2

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  1. 6 July, 09:10
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    First, let's find the solution.

    -2x + 3y = 8

    Add 2x to both sides.

    3y = 2x + 8

    Divide both sides by 3.

    y = 2/3x + 8/3

    4x + 2/3x + 8/3 = - 2

    14/3x + 8/3 = - 2

    Subtract 8/3 from both sides.

    14/3x = - 14/3

    Multiply both sides by 3/14.

    x = - 1

    y = 2/3 (-1) + 8/3

    y = - 2/3 + 8/3

    y = 6/3, or 2.

    The solution is (-1, 2) which lies in Quadrant II, because its outline is (-, + ).
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