Question

What is the solution to the following system of equations?

4x + 2y = 6
x - y = 3

(2,1)
(-2,-1)
(2, 4)
(2, -1)

Answer 1

2, -1

Explanation:

Answer 2

(2,-1)

Explanation:

-4 (x - y = 3)

-4x - 8y = -12

4x + 2y = 6

-4x + 4y = -12

6y = -6

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6 6

y = -1

4x + 2(-1) = 6

4x - 2 = 6

+2 +2

4x = 8

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4 4

x = 2

(2,-1)