nykelahoward nykelahoward
  • 22-02-2017
  • Mathematics
contestada

Solve for r and t:
6r - 3t = 6
6r + 8t = -16

Respuesta :

abdulla2001
abdulla2001 abdulla2001
  • 22-02-2017
multiply the first equation with (-1)
you should get this

-6r + 3t = -6
6r + 8t = -16

start to eliminate

11t = -22

divide by 11

t = -2

substitute 

6r - 3(-2) = 6
6r + 6 = 6
6r = 6 - 6
6r = 0 
r=0
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