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18-09-2017
Mathematics

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Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 4 x - y = 0

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texaschic101 texaschic101

18-09-2017

x + y = 4
x - y = 0
------------add
2x = 4
x = 4/2
x = 2

x + y = 4
2 + y = 4
y = 4 - 2
y = 2

solution is (2,2)....so it contains one point <==

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