What are the values of x and y in the following pair of equations? x² y - 2y = 42 x + 2 = 5
Answer: x = 3, y = 6
Explanation
Given the pair of equations:
1. x²y - 2y = 42
2. x + 2 = 5
From equation (2), we get:
x = 5 - 2
x = 3
Now, substitute x = 3 into equation (1):
3²y - 2y = 42
9y - 2y = 42
7y = 42
y = 6
This question appeared in
Past Papers (2 times)
Sindh University Past Papers and Syllabus (2 times)
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