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Question

Question 3 (iv)
Are the following pair of linear equations consistent? Justify your answer

x + 3y = 11 and 2(2x + 6y) = 22


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Solution

x + 3y = 11 and 2x + 6y = 11
a1=1, b1=3, c1=11a2=2, b2=6, c2=11now, a1a2=12, b1b2=36=12,c1c2=1111=1a1a2=b1b2c1c2

The pair of equations represents a pair of parallel lines.
Hence, the pair of linear equations has no solution.

Thus, the pair of linear equations is inconsistent.


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