How do I solve this equation?

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490

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x-y=1 x+y=3

Guest Jan 25, 2017

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1⁺⁰ Answers

+129840

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x-y=1

x+y=3 add the equations

2x = 4 → x = 2

And

x + y = 3

2 + y = 3 → y = 1

CPhill Jan 25, 2017

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