Question

5^3x - 5^3x-1

`{5}^(3x) - {5}^(3x - 1) = 4`
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Answer 1

x=1/3

Explanation:

Factor out 5^3x

5^3x(1-1/5)=4

Combine the fractions

5^3x(4/5)=4

Multiply both sides by 5/4

5^3x=5

Now we have the same base of 5 so we can set the exponents equal to one another (the exponent of 5 is 1)

3x=1

X=1/3