alexkamm
alexkamm
28-01-2015
Mathematics
contestada
3x - 4y = 18
x + 3y = -7
Respuesta :
britnyparker
britnyparker
28-01-2015
3x-4y=18
+3x +3x
-----------------
-4y=3x+18
÷-4 ÷-4
----------------
y=-3/4x-6
x+3y=-7
-x -x
------------
3y=-x-7
÷3 ÷3
--------------
y=-x-7/3
I think but not sure :)
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