Q4 of 65 Page 10

Let us solve :

Let x + 1 = k











For, k = 1


x + 1 = 1


⇒ x = 1-1 = 0


For, k = -6


x + 1 = -6


⇒ x = -6-1 = -7


So, x = 1 or x = -7


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