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x=5 and y=2 is a solution of the linear ...

x=5 and y=2 is a solution of the linear equation

A

x=+2y=7

B

5x+2y=7

C

x+y=7

D

5x+y=7

Text Solution

Verified by Experts

(a) Take x+2y, on putting x=5 and y=2, we get
`5+2(2)=5+4=9 ne 7`
So, (5,2) is not a solution of x+2y=7
(b) Take 5x+2y, on putting x=5 and y=2, we get
`5xx5+2xx2=25+4=29 ne 7`
So, (5,2) is not a solution of 5x+2y=7.
(c ) Take x+y, on putting x=5 and y=2, we get 5+2=7
So, (5,2) is a solution of x+y=7.
(d) Take 5x+y, on putting x=5 and y=2, we get
`5xx5+2=25+2=27 ne 7`
So, (5,2) is not a solution of 5x+7=7.
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