asked 201k views
4 votes
Solve, using linear combination.

5x + 2y = –4
–3x + 2y = 12
Responses

(4, 0)
(4, 0)

(–2, 3)
(–2, 3)

(0, –2)
(0, –2)

(2, –7)

asked
User Snajahi
by
7.3k points

1 Answer

2 votes

Answer:

(-2,3)

Explanation:

Multiply the second equation by -1.

5x+2y=-4

3x-2y=-12

Linear combination

8x=-4-12

8x=-16

x=-2

Solve for y

5(-2)+2y=-4

-10+2y=-4

2y=6

y=3

answered
User Carla
by
8.0k points

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