Solve the following system of equations: (1 point)

−2x + y = 1
−4x + y = −1

(3, 1)

(−1, 3)

(−1, −3)

(1, 3)

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Respuesta :

Persist Persist · Answer 1 · 2017-11-10T15:50:21+01:00

-4x+y=-1
y=-1+4x
1+y=4x
then i used common sense and plugged the given answers in.
1+(3)=4(1)
4=4
D. (1,3)

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wifilethbridge wifilethbridge · Answer 2 · 2019-05-14T06:20:22+02:00

Answer:

(1,3)

Step-by-step explanation:

Given : [tex]-2x + y = 1[/tex]

[tex]-4x + y = -1[/tex]

To Find : Solve the following system of equations:

Solution:

[tex]-2x + y = 1[/tex] --1

[tex]-4x + y = -1[/tex] --2

Substitute the value of from 2 in 1

[tex]-2x + (-1+4x) = 1[/tex]

[tex]-2x -1+4x = 1[/tex]

[tex]2x = 2[/tex]

[tex]x = 1[/tex]

Substitute the value of x in 2

[tex]-4(1) + y = -1[/tex]

[tex]-4 + y = -1[/tex]

[tex] y =3[/tex]

Solution : (1,3)

Hence the solution of system of equations is (1,3)