Question

Solve for X,if 3^x-1=1/27. pls with full steps.​

Answer 1

Answer:

3^x-1=1/27

3^x-1=1/3^3

3^x-1=3^-3

x-1=-3

x=-3+1=-2

x=-2

x=-2

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Answer 2

Answer:

x=-2

Step-by-step explanation:

${3}^{x - 1} = \frac{1}{27} \\ {3}^{x - 1} = \frac{1}{ {3}^{3} } \\ {3}^{x - 1} = {3}^{ - 3} \\ x - 1 = - 3 \\ x = - 3 + 1 \\ x = - 2$

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