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For what values of a and b does the foll...

For what values of a and b does the following pair of linear equations have infinitely many solutions ?
`2x + 3y = 7`
`a (x + y) - b (x - y) = 3a + b - 2`

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The correct Answer is:
a = 5, b = 1
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KUMAR PRAKASHAN-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -Practice Thoroughly
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