161k views
5 votes
5x - 2y = 15

2x + 4y = 12

Select the solution to the system from the options below:

2 Answers

5 votes

Answer:

x = 7/2 and y = 5/4

Explanation:

2(5x - 2y = 15)

2x + 4y = 12

10x - 4y = 30

2x + 4y = 12 (add)

-----------------

12x = 42

x =
(42)/(12) =
(7)/(2)

2x + 4y = 12 (subsitute)

2(
(7)/(2)) + 4y = 12

7 + 4y = 12

4y = 5

y =
(5)/(4)

User Ngm
by
8.0k points
4 votes

Answer:

7/2, 5/4

Explanation:

User Foumpie
by
8.1k points

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