mariana4274 mariana4274

02-03-2021
Mathematics

contestada

What is the solution to this system of linear equations?
y - 4x=7
2y + 4x = 2
(3,1)
(1,3)
3.-1)
(-1,3)

Respuesta :

anikakinnear anikakinnear

02-03-2021

[tex]y=7+4x\\2(7+4x) +4x=2\\14+8x+4x=2\\14+12x=2\\12x=-12\\x=-1\\\\y-4(-1)=7\\y+4=7\\y=3[/tex]

(-1,3)

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