If 5x + y = 25 and 5x - y = 5, then what are the values of x and y respectively?

A

4/3, - 3/2

B

3/2, 1/2

C

- 1/2, - 1/2

D

3/5, 0

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Question: If 5x + y = 25 and 5x - y = 5, then what are the values of x and y respectively?

Solution:

Given,

5x+y = 25

5x + y = 52

x + y = 2 .......(1)

Again,

5x - y = 5

5x - y = 51

x - y = 1 ........(2)

Now, solving (1) and (2) we get,

x + y + x - y = 2 + 1

2x = 3

x = 3/2

Now,

x + y = 2

3/2 + y = 2

y = 2 - (3/2)

y = 1/2

​(x, y) = (3/2, 1/2)

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Updated: 14 hours ago

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