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25 February, 12:34

Write three more equations with integer coefficients and the variable x that have the same solution set {7, - 1}. Explain.

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  1. 25 February, 12:56
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    The given values of abscissa and ordinate in the given are that which when substituted to the values of x and y in the equation will make the equation true. This means that the left and right-hand side of the equation will be equal. The established equations should have a basis of,

    x + y = c

    The equations are,

    x + y = 6

    Substituting x = 7 and y = - 1,

    7 + (-1) = 6; 6 = 6

    The other two equations will be,

    2x + y = 13 and,

    x + 2y = 5

    It is to be noted that countless of equations can be made with the given solution so long as the equation is valid.
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