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March 29, 2017

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y=-x+8
x+y=7

a)(1/2,15/2)
b)system has infinitely many solutions
c)(-1/2,17/2)
d)no solutions

  • algebra1 - ,

    y = -x+8 and x+y=7 OR y = -x +7
    Line are parallel, both with slopes = -1
    y = -x+8
    y = -x+7

    There is no solution

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