exam Maths Puzzle Numerical Ability

Can anyone give me a hand with this one? Thanks

Solve the equation. If answer is not exact,givethe answer to four decimal places.

27^x+1 = 3^2x+1

Thanks for your assistance.

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exam Other Question

You have six pairs of jeans, three shirts, two pairs of sandles. How many different outfits can you wear from these choices? triangle sides (a), (b) and (c)
(a) unknown, b=(x) and c=(x+4)
internal angle opposite length (a) = 150 degrees
area of triangle = 15cm squared
Find length (a)