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5 votes
Solve the following system of equations:

−2x + y = 1
−4x + y = −1

(3, 1)
(−1, 3)
(−1, −3)
(1, 3)

User StepUp
by
8.8k points

2 Answers

5 votes

Answer:

THE ANSWER IS 1,3 basically we did what the previous user did and follow those steps. I didnt see many difference from what u are supposed to do.

Explanation:

User Alfietap
by
8.1k points
6 votes
Equation 1) -2x + y = 1
Equation 2) -4x + y = -1

Subtract equations from one another.

2x = 2

Divide both sides by 2.

x = 1

Plug in 1 for x in the first equation.

-2x + y = 1

-2(1) + y = 1

Simplify.

-2 + y = 1

Add 2 to both sides.

y = 1 + 2

Simplify.

y = 3

(1,3)

~Hope I helped!~


User Renan Bandeira
by
8.5k points

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