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If x=5 and y=-2 , then find the value of...

If x=5 and y=-2 , then find the value of
(i) `(8x-2y+5)/(2x+4ty+12) " "(ii) (5x-6y-7)/(3x+6y+12)`

Text Solution

Verified by Experts

The correct Answer is:
(i) `(7)/(2)`
(ii) 2
x=5, y=-2
(i) `(8x-2y+5)/(2x+4y-10)=(8xx5-2xx(-2)+5)/(2xx5+4(-2)-10)`
`=(40+4+5)/(10-8+12)`
`=(49)/(14)=(7)/(2)`
`(ii) (5x-6y-7)/(3x+6y+12)=(5xx5-6(-2)-7)/(3xx5+6(-2)+12)`
`=(25+12-7)/(15-12+12)`
`=(30)/(15)=2`
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