Answer:
4
Step-by-step explanation:
Since the bases are equal the powers also are equal
so
2x + 1 = x + 5
2x - x = 5 - 1
x = 4
Here is how to work the problem... basically you solve for one of the variables in one of the problems and then use substitution into the other. once you have both answers you substitute them both Into the last equation to solve.
The answer is 8.75 because i look it up in my notes