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16 August, 00:16

The numbers x and y have a sum of 1 and a difference of 11.

How do I write a system of equations to represent this information?

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Answers (1)
  1. 16 August, 00:24
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    Sum means add

    difference means subttract

    x+y=1

    x-y=11

    add the 2 equations together

    2x+0y=12

    divide 2

    x=6

    subitute

    6+y=1

    subtract 6

    y=-5

    x=6

    y=-5
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