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

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)

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