Ingeborg195 Ingeborg195
  • 29-10-2014
  • Mathematics
Answered

The ordered pair (1, -5) is a solution for the system x + 2y = -9 and x - y = 6 True False



Answer :

konrad509
konrad509 konrad509
  • 29-10-2014
[tex]1+2\cdot(-5)=-9\\ 1-10=-9\\ -9=-9\Rightarrow \hbox{ true}\\\\ 1-(-5)=6\\ 1+5=6\\ 6=6 \Rightarrow \hbox{ true}[/tex]

TRUE
Answer Link
beccashaw beccashaw
  • 29-10-2014
TRUE
(1) + (-10) = -9
(1) - (-5) = 6
Answer Link

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