Question

10 upon 3 into 3 raise to the power x minus 3 raise to the power x - 1 is equals to 81 find x​

Answer 1

Answer:

${3}^{x} ( \frac{10}{3} - \frac{1}{3} ) = 81 \\ \\ {3}^{x} (3) = 81 \\ \\ {3}^{x} = {3}^{3} \\ \\ x = 3$

Answer 2

Answer:

see the attachment

Step-by-step explanation: