leannatig leannatig
  • 01-03-2017
  • Mathematics
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I don't know how to solve it . I don't know how to step it up

I dont know how to solve it I dont know how to step it up class=

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valadezj1
valadezj1 valadezj1
  • 01-03-2017
(-1,2) solve for the first variable in one of the equations, then substitute the result into the other equation
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