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  • 12-01-2017
  • Mathematics
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Solve the system of linear equations by elimination

x - y = 4
x + y = 2

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Аноним Аноним
  • 12-01-2017
x - y = 4 
x + y = 2
---------------add
2x = 6
x = 3

x - y = 4 
3 - y = 4
y = 3 -4
y = -1

solution (3,-1)
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