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What is the solution of x5x+3<1?...

What is the solution of x5x+3<1?

A.

-3 < x < 1

B.

x < -3 or x > 1

C.

-3 < x < 5

D.

x < -3 or x > 5

Correct answer is A

Consider the range -3 < x < -1

= { -2, -1, 0}, for instance

When x = -2,

252+3<1

71<1

When x = -1,

151+3<1

62<1

= -3 < -1

When x = 0,

050+3<1

53<1

Hence -3 < x < 1