Q. 4 L4.3( 27 Votes )

# Let us solve :

Answer :

Let 2x + 1 = y

For y = 3,

2x + 1 = 3

⇒ 2x = 3-1

⇒ 2x = 2

⇒ x = = 1

For y = 1,

2x + 1 = 1

⇒ 2x = 1-1

⇒ 2x = 0

⇒ x = 0

So, x = 1 or x = 0

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