eritomilolaesther eritomilolaesther
  • 25-11-2021
  • Mathematics
contestada

3x²-xy= 0
2y-5x=1
Using elimination method

Respuesta :

moha404444444 moha404444444
  • 25-11-2021

Answer:

x=1, y=3

Step-by-step explanation:

Rearrange equations 1 and 2 so that y is the subject

3x^2 = xy

Equation 1) y = 3x

Equation 2) 2y = 5x + 1

multiply the first equation by 2

2y = 6x

2y = 5x + 1

subtract the 2 equations from each other

2y - 2y = 6x - (5y +1)

0 = x - 1

x = 1

substitute x = 1 in the second equation

2y - 5(1) = 1

2y = 1 + 5

2y = 6

y = 3

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