mgarrett37
mgarrett37
17-04-2018
Mathematics
contestada
4x - 2y = -4
-6x + 6y = 30
Respuesta :
mkryukova19
mkryukova19
17-04-2018
simplify 1st equation
2x-y=-2
simplify second equation
-x+y=5
add both equations
2x-y=-2
-x+y=5
------------
x =3
-x+y=5
-3+y=5
y=8
x=3, y=8
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