1.

Find the value of k for which the following pair of linear equations has infinitemany solutions.2x – 3y = 7 , ( k + 1 ) x + ( 1 – 2k ) y = ( 5k – 4 )

Answer»

ANSWER:

k=5

Step-by-step EXPLANATION:

\frac{a_{1} }{a_{2} } =\frac{b_{1} }{b_{2} } =\frac{c_{1} }{c_{2} } \\\frac{2}{k+1} =\frac{-3}{1-2k} =\frac{7}{5k-4} \\

⇒On EQUATING each with all

k=5


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