Question

find the value of x so that 3^x + 3^x + 3^x = 81​

Answer 1

Answer:

${3}^{x} + {3}^{x} + {3}^{x} = 81 \\ {3}^{x} (1 + 1 + 1) = 81 \\ {3}^{x} \times 3 = 81 \\ {3}^{x} = \frac{81}{3} \\ {3}^{x } = 27 \\ {3}^{x} = {3}^{3 } \\ equating \: the \: exponents \\ x = 3$

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