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algol13
3 years ago
5

2x + 8y = 21 6x - 4y = 14

Mathematics
1 answer:
Pavel [41]3 years ago
8 0
  • Answer:
  • (x,y)=(3/31, 107/62)

Step-by-step explanation:

{2x+8y=14

{216x-4y=14

{x+4y=7

{216x-4y=14

217x=21

x=3/31

2*3/31+8y=14

y=107/62

(x,y)=(3/31, 107/62)

2*3/31+8*107/62=216*3/31-4*107/62=14

14=14=14 since all of the equalities are true the order pair is the solution of the system (x,y)=(3/31, 107/62)

hope this helps :)

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3 years ago
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4 years ago
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3 years ago
Submit
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