Sum7isKarreishaunda Sum7isKarreishaunda
  • 29-03-2017
  • Mathematics
contestada

Solve the system
{3x-y=4
-9x+3y=-12

Respuesta :

ghanami
ghanami ghanami
  • 29-03-2017
Hello :
3x-y=4 .....(1)
-9x+3y=-12 ....(2)
by (1) : y = 3x-4
in (1) :   -9x +3(3x-4) = -12
-12=-12
infinity solution : ( x , 3x-4)    x in R
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