hallie2525 hallie2525
  • 09-05-2017
  • Mathematics
contestada

can someone tell me what these are? 2a-5b=-19 3a+5b=9

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Anoushkaa11
Anoushkaa11 Anoushkaa11
  • 09-05-2017
These are simultaneous equations used to find the value of a and b.
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