maddie4713
maddie4713 maddie4713
  • 13-01-2016
  • Mathematics
contestada

{3x-y=1 {-2x+y=2. Solve

Respuesta :

rayschoon31
rayschoon31 rayschoon31
  • 13-01-2016
y = 3x-1
-2x+(3x-1) = 2
x-1=2
x=3
y=3(3)-1
y=8
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Willchemistry
Willchemistry Willchemistry
  • 13-01-2016
{ 3 x - y = 1
  -2 x + y = 2
------------------
   x  = 1 + 2

   x = 3

For y:

3 x - y = 1

3 * 3 - y = 1

9 - y = 1

y =  9 - 1

y = 8

Hope this helps!.




 
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