Alyzzkool Alyzzkool
  • 27-02-2021
  • Mathematics
contestada


Solve 5x-3y =1,
3x-y=5.

Respuesta :

cwrw238 cwrw238
  • 27-02-2021

Answer:

Below in bold.

Step-by-step explanation:

5x - 3y = 1

3x- y = 5                    Multiply this equation by -3:

-9x + 3y = -15            Now add this equation to the first equation:

-4x = -14

x = -14/-4 = 3.5.

Now substitute for x in equation 1:

5(3.5) - 3y = 1

-3y = 1 - 17.5

-3y = -16.5

y = 5.5.

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