Haleyy111 Haleyy111
  • 25-07-2017
  • Mathematics
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RickyChen
RickyChen RickyChen
  • 25-07-2017
For the first one, if you add 2 equations together, you will get:

4 = 4, which is trivial, irrelevant to x. So it means it has infinite solutions

For the second one, if you add them up, you will get 0 = 12, which is incorrect, and irrelevant to x as well. So it means it has no solutions  
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