4x + 4 = 32 হলে x এর মান কত?

A 1

B - 1

C 3/2

D - 3/2

Solution

Correct Answer: Option D

4x + 4 = 32
⇒ (22)x + 4 = 25
⇒ 22x + 8 = 25
⇒ 2x + 8 = 5
⇒ 2x = 5 - 8
⇒ 2x = - 3
∴ x = - 3/2

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