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3x - 3x - 1 = 486 Find x

This question belongs to Arithmetic Ability Surds And Indices
Surds and Indices
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3x - 3x - 1 = 486, Find x

Answer & Solution
Correct Answer: Option D
3x - 3x - 1 = 486
⇒ 3x - 1(3 - 1) = 486
⇒ 3x - 1 = 243
⇒ 3x - 1 = 35
⇒ x = 6
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