Answer:
x=1/3
Step-by-step 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
