SOLUTION: 125^x=5^4 solve for x 16^n+3=2^3 solve for x with explanations please

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Question 980316: 125^x=5^4 solve for x
16^n+3=2^3 solve for x
with explanations please
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
125=5%5E3
So,
125%5Ex=5%5E4
Substituting,
%285%5E3%29%5Ex=5%5E4
5%5E%283x%29=5%5E4
3x=4
x=4%2F3
.
.
.
Similarly,
16=2%5E4
16%5E%28n%2B3%29=2%5E3
%282%5E4%29%5E%28n%2B3%29=2%5E3
2%5E%284%28n%2B3%29%29=2%5E3
4%28n%2B3%29=3
n%2B3=3%2F4
n=3%2F4-12%2F3
n=-9%2F4