Question

I will mark you brainliest ​

Answer 1

Answer:

$3^{x-1}=\frac{1}{27}\\= 3^{x-1}=3^{3\left(-1\right)}\\= x-1=3\left(-1\right)\\= x-1=-3\\= x=-2$

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Answer 2

Answer:

x is equal to minus 2

Step-by-step explanation:

as on right hand side 1upon 27means 1upon3cube which when brought to the numerator gives 3raise to -3

then there is a formula that if the bases of the powers are same then there powers would also be same

then the equation would be

x-1= -3

then after it would give x as -2