What is the answer to 3^{2y-1}+3^{2y-2}-3^{2y-4}=315 ?

The answer to 3^{2y-1}+3^{2y-2}-3^{2y-4}=315 is y=3

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3^{2y-1}+3^{2y-2}-3^{2y-4}=315

3^{2 y - 1} + 3^{2 y - 2} - 3^{2 y - 4} = 315

y = 3

Solution steps

3^{2 y - 1} + 3^{2 y - 2} - 3^{2 y - 4} = 315

Apply exponent rules

2 y = 6

Solve

2 y = 6 : y = 3

y = 3

2^{7 - 3 x} = \frac{1}{4}

5^{3 x + 9} = 8

e^{- 2 x^{2}} = 0

6^{2 x - 3} = 7776

10 = 2^{(0.5 x)}

What is the answer to 3^{2y-1}+3^{2y-2}-3^{2y-4}=315 ?
The answer to 3^{2y-1}+3^{2y-2}-3^{2y-4}=315 is y=3
Solve for y: 3^{2y-1}+3^{2y-2}-3^{2y-4}=315
The solution is y=3