Question

Solve the following system of equations: (1 point)

−2x + y = 1
−4x + y = −1


(3, 1)

(−1, 3)

(−1, −3)

(1, 3)

Answer 1

-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)

Answer 2

(1,3)

Explanation:

Given :
`-2x + y = 1`

`-4x + y = -1`

To Find : Solve the following system of equations:

Solution:

`-2x + y = 1` --1

`-4x + y = -1` --2

Substitute the value of from 2 in 1

`-2x + (-1+4x) = 1`

`-2x -1+4x = 1`

`2x = 2`

`x = 1`

Substitute the value of x in 2

`-4(1) + y = -1`

`-4 + y = -1`

`y =3`

Solution : (1,3)

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