yeetimusprime2k yeetimusprime2k
  • 02-12-2020
  • Mathematics
contestada

x - 2y =0
3x + y = 0
solve using the substitution method
to solve the linear system
​

Respuesta :

Leora03
Leora03 Leora03
  • 02-12-2020

Answer:

x=0, y=0

Step-by-step explanation:

① Label the 2 given equations.

x -2y= 0 -----(1)

3x +y= 0 -----(2)

② Make x the subject of formula in equation (1).

From (1): x= 2y -----(3)

③ Substitute equation (3) into (2):

3(2y) +y= 0

Expand:

6y +y= 0

Simplify:

7y= 0

y= 0

④ Find x.

Subst. y=0 into (3):

x= 2(0)

x= 0

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