Question

Solve 5^x+3=25^x

Answer 1

Are you solving for x? I can't seem to figure it out.

Answer 2

\[\Large 5^{x+3}=\color{royalblue}{25}^x \qquad\to\qquad 5^{x+3}=\color{royalblue}{(5^2)}^{x}\]

Answer 3

Understand what I did there?
From there you'll want to apply one of your rules of exponents.\[\Large \color{orangered}{(a^b)^c\quad=\quad a^{bc}}\]