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xxTIMURxx [149]
2 years ago
15

Solve: x+y=5 x-4y=20

Mathematics
1 answer:
WARRIOR [948]2 years ago
6 0

Answer:

x=8

y=-3

Step-by-step explanation:

let

x+y=5........ equation 1

x-4y=20....... equation 2

x=20+4y

substituting the value of x in eq 1

x+y=5

20+4y+y=5

5y=5-20

y=-15/5

y=-3

again putting the value of y in eq 2

x=20+4y

x=20+4(-3)

x=20-12

x=8

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Hello there!

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Read 2 more answers
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Answer:

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