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Question
(i) x = 3, y = 1 is a solution of 9x – 7y = 20.
(ii) x = 4, y = –1 is a solution of x – y = 5.
Options
Only (i)
Only (ii)
Both (i) and (ii)
Neither (i) nor (ii)
MCQ
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Solution
Both (i) and (ii)
Explanation:
(i) Check if x = 3, y = 1 is a solution of 9x – 7y = 20:
9(3) – 7(1)
= 27 – 7
= 20
Yes, it satisfies the equation.
(ii) Check if x = 4, y = –1 is a solution of x – y = 5:
4 – (–1)
= 4 + 1
= 5
Yes, it satisfies the equation as well.
So, both (i) and (ii) are true.
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