jaylenecute29
jaylenecute29 jaylenecute29
  • 23-03-2018
  • Mathematics
contestada

Solve the system using elimination. x − 4y = 4 3x − 4y = −12

Respuesta :

jndawg04 jndawg04
  • 23-03-2018
Common in both: -4y
Subtract the second from the first.
x-4y=4
3x-4y=-12
-2x=16
x=-8
Substitute in to find y.
-8-4y=4
-4y=12
y=-3
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