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What is the solution to this system of linear equations? 2x + y = 1 and 3x - y = -6

User Dbrrt
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2 Answers

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Answer: (-1,-3) or A on the quiz

Got it right

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User Jaco
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4 votes

Answer:

(- 1, 3 )

Explanation:

Given the 2 equations

2x + y = 1 → (1)

3x - y = - 6 → (2)

Adding the 2 equations term by term eliminates the y- term, that is

5x = - 5 ( divide both sides by 5 )

x = - 1

Substitute x = - 1 into either of the 2 equations and evaluate for y

Substituting into (1)

2(- 1) + y = 1

- 2 + y = 1 ( add 2 to both sides )

y = 3

Solution is (- 1, 3 )

User Alex Lyalka
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