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19-02-2018
Mathematics

contestada

Which of the following is a solution to the system of equations below?
2x+y=3
{
x−y=6

options: (3,-6) (2, -4) (3,-3) (-3,3)

Respuesta :

Banabanana Banabanana

19-02-2018

{2x+y=3
+
{x−y=6
_______
3x = 9
x = 3

x−y=6
3 - y = 6
-y = 6 - 3
-y = 3
y = -3

(3, -3)

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