Question

If 3^x - 3^(x-1) = 162​

Answer 1

Answer:

${3}^{x} - {3}^{x - 1} = 162 \\ by \: solving \: powers \: first \: we \: can \: get \: it \:$

Step-by-step explanation:

$x + (x - 1) \: = 162 \\ x + x - 1 = 162 \\ 2x - 1 = 162 \\ 2x = 162 + 1 \\ 2x = 163 \\ x = \frac{163}{2}$

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Answer 2

Answer:

5

Step-by-step explanation:

3^5 - 3^(5-1) = 162

243 - 81 = 162