alexiscoreascamargo alexiscoreascamargo
  • 10-02-2022
  • Mathematics
contestada

8x-2y = 18
y = 4x - 9
Solve by substitution

Respuesta :

emplols
emplols emplols
  • 10-02-2022
x= 3 y= 3
8(3) -2(3)= 18
24 - 6 = 18
y(3) = 4(3) - 9
3 = 12- 9
Answer Link
mhanifa
mhanifa mhanifa
  • 10-02-2022

Answer:

  • Infinitely many solutions

Step-by-step explanation:

Given system:

  • 8x - 2y = 18
  • y = 4x - 9

Solve by substitution:

  • 8x - 2(4x - 9) = 18
  • 8x - 8x + 18 = 18
  • 18 = 18

We got correct equation without variables.

It means the equation is correct for any value of variables, the lines are same and overlap.

So there are infinitely many solutions.

Answer Link

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