ishasrao4010 ishasrao4010
  • 18-05-2018
  • Mathematics
contestada

What is the ordered pair of real numbers $(x, y)$ which satisfies the equation $|x+ y-7|+ |4x - y+ 12|= 0$?

Respuesta :

calculista
calculista calculista
  • 28-05-2018
we know that
if |x+ y-7|+ |4x - y+ 12|= 0
then
x+ y-7=0
and
4x - y+ 12=0

using a graph tool
see the attached figure

the solution is the point (-1,8)
the answer is
the ordered pair of real numbers is (-1,8)
Ver imagen calculista
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