Question

Solve the following system of equations:

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

(3, 1)

(-1, 3)

(-1, -3)

(1, 3)

Answer 1

really need help

Answer 2

-2x + y = 1 i.e. y= 2x+1-----(1
-4x + y = -1------(2

substituting y= 2x+1 in eq (2 we find:
-4x + 2x+1 = -1
-2x+1=-1
i.e. -2x= -2
i.e. x= -2/-2
i.e. x= 1
hence y= 2x+1 = 2*1 + 1 = 2+1 = 3
So (x, y) = (1, 3) is required solution set.
Hence last option is correct answer.

@alyssa_fields50

Answer 3

@alyssa_fields50

Answer 4

I have more questions if anyone else like to help me
itd be very appreciated

Answer 5

Go ahead, but medal first

Answer 6

Solve the system of equations.

x + 3y = -1
2x + 2y = 6

(-4, 1)

(2, -1)

(4, -1)

(5, -2)
sorry for taking so long my connection keeps going out.