allyssag allyssag

26-09-2019
Mathematics

contestada

y=_x+4
x + 2y =
8
How many solutions dose this linear system have

Respuesta :

adawoud1000 adawoud1000

26-09-2019

Answer:

X=-1, y=4

Step-by-step explanation:

[tex]y = x + 4 \\ x + 2y = 8 \\ = = = = = = = = = = = = \\ y - x = 4 \\ x + 2y = 8[/tex]

by using eliminating property

[tex]3y = 12 \\ y = \frac{12}{3} = 4[/tex]

by substitution

X=-1

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