tuaghgh tuaghgh
  • 16-03-2021
  • Mathematics
contestada

Solve the system:


x+4y=1


3x+5y=10

Respuesta :

sherlocking
sherlocking sherlocking
  • 16-03-2021

Answer:

[tex]x=6.25\\y=-1.25[/tex]

Step-by-step explanation:

[tex]3x+5y=10\\x+3y=1\\\\[/tex]

Second equation times 3:

[tex]3x+9y=3[/tex]

1st equation minus equation above:

[tex]-4y=7\\y=-7/4[/tex]

Insert to equation:

[tex]3x+\frac{-35}{4}=10\\12x-35=40\\12x=75\\x=75/12=6.25[/tex]

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