urbana
urbana urbana
  • 19-05-2017
  • Mathematics
contestada

x+y=4
x-y=-6

x-y=7
x+y=1



x and y equal what on both equations
These both are elimination using addition and subtraction.

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Аноним Аноним
  • 30-05-2017
using you for answering points ok....NO hard felling :)
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