officialjaii
officialjaii
06-02-2017
Mathematics
contestada
What is the (x,y) ordered pair?
Respuesta :
elijahuang
elijahuang
09-02-2017
-7x+y=23
6x+7y=-4
y=7x+23
6x+7(7x+23)=-4
6x+49x+161=-4
55x+161-161=-4-161
55x/55=-165/55
x=-3
-7(-3)+y=23
21+y-21=23-21
y=2
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