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4 votes
Solve for x
3^x = 243
I know x=5, I just need help finding out how to solve it.

1 Answer

4 votes
If “3^x=243”, solve for “x”?

243/3 = 81, 243 = 3*81 = 3*9*9 = 3*3*3*3*3 = 3^5
3^x=243
3^x=3^5, since the bases are equal, the exponents must be equal

x = 5
User Wim Den Herder
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