mallorykay44
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Which of the following sets of values is a solution to the following system of linear equations?

4x + y = 24

x - y = -4


A.) x = 4,y =8

B.) x = 2,y = 6

C.) x = 1,y = 1

D.) x = 5,y = 4

Also explain why.

Respuesta :

calculista

Answer:

Option A. [tex]x=4,y=8[/tex]

Step-by-step explanation:

we have

[tex]4x + y = 24[/tex] -----> equation A

[tex]x-y=-4[/tex] -----> equation B

Adds equation A and equation B

[tex]4x + y = 24\\x-y=-4\\---------\\4x+y+x-y=24-4\\5x=20\\x=4[/tex]

Find the value of y

[tex]x-y=-4[/tex]

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

[tex]y=4+4=8[/tex]

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