SkyyJ781682 SkyyJ781682
  • 31-10-2022
  • Mathematics
contestada

slove using elimination-2x-5y=12x+2y=-10

Respuesta :

KayronR732291 KayronR732291
  • 31-10-2022

We have the following:

[tex]\begin{gathered} -2x-5y=1 \\ 2x+2y=-10​ \end{gathered}[/tex]

solving using elimination:

[tex]\begin{gathered} -2x-5y=1 \\ + \\ 2x+2y=-10​ \\ -2x+2x-5y+2y=1-10 \\ -3y=-9 \\ y=\frac{-9}{-3} \\ y=3 \end{gathered}[/tex]

Now, for x:

[tex]\begin{gathered} -2x-5\cdot3=1 \\ -2x-15=1 \\ -2x=16 \\ x=\frac{16}{-2} \\ x=-8 \end{gathered}[/tex]

Therefore:

x = -8 and y = 3

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