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18-12-2017
Mathematics

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Can someone explain to me how to solve this?

Use elimination to solve each system of equations.

x + y = 7

x - y = -3

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Аноним Аноним

18-12-2017

Clear out any fractions by Multiplying every term by the bottom parts.Add or Subtract the same value from both sides.Divide every term by the same nonzero value.Combine Like Terms.Factoring.Expanding (the opposite of factoring) may also help.

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