Question

please help me solve this equation
9=(27)^y-1

Answer 1

Answer:

y = 1n ( 10 ) / 31n ( 3 )  

Step-by-step explanation:

Switch Sides: 27^y -1 = 9

Add 1 to both sides: 27^y -1 + 1 = 9 + 1

Simplify: 27^y = 10

Next, you apply exponent rules: yln ( 27 ) = ln ( 10 )

Then, solve yn  27 ) = ln ( 10 ) : y = 1n ( 10 )/ 31n ( 3 )

So, you answer should be

y = 1n ( 10 ) / 31n ( 3 )