Find out which of the following equations have x=1, y=1 as a solution:
(a) 2x+5y=7
(b) 5x+3y=7
(C) 2x+3y=7
(d) none of these
Answers
Answered by
3
Answer:
A is the answer
Step-by-step explanation:
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Answered by
7
ANSWER:
(a) 2x + 5y = 7
=> 7xy = 7
=> xy = 1
(b) 5x + 3y = 7
=> 8xy = 7
=> xy = 7/8
(c) 2x + 3y = 7
=> 5xy = 7
=> xy = 5/7
Xy = 1 is the answer
A
Hope it help u
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