MATH SOLVE

3 months ago

Q:
# Solve the following system of equations: −2x + y = 1 −4x + y = −1A.(3, 1)B.(−1, 3)C.(−1, −3)D.(1, 3)

Accepted Solution

A:

Hello!

-2x + y = 1

-4x + y = -1

You can subtract these equations from each other to eliminate y

2x = 2

Divide both sides by 2

x = 1

Put this into one of the original equations

-2(1) + y = 1

Combine like terms

-2 + y = 1

Add 2 to both sides

y = 3

The answer is D) (1, 3)

Hope this helps!

-2x + y = 1

-4x + y = -1

You can subtract these equations from each other to eliminate y

2x = 2

Divide both sides by 2

x = 1

Put this into one of the original equations

-2(1) + y = 1

Combine like terms

-2 + y = 1

Add 2 to both sides

y = 3

The answer is D) (1, 3)

Hope this helps!