Respuesta :
3x+8y=85
7x-2y=33
4(7x-2y=33)
28x-8y=132
+3x+8y=85
31x=217
__ ___
31 31
X= 7
7(7)-2y=33
49-2y=33
-2y=-16
______
-2
Y=8
(7,8)
7x-2y=33
4(7x-2y=33)
28x-8y=132
+3x+8y=85
31x=217
__ ___
31 31
X= 7
7(7)-2y=33
49-2y=33
-2y=-16
______
-2
Y=8
(7,8)
