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MATH SOLVE
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Solve the following system of equations: −2x + y = 1 −4x + y = −1A.(3, 1)B.(−1, 3)C.(−1, −3)...
5 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!