Question

If you think that Andy solved the problem correctly, explain how you can tell he is correct. If not, identify and explain all error(s) and then show the correct solution.

Answer 1

It is wrong. Here are the correct steps.

25^5=125^x+1

(5^2)^2=(5^3)^x+1

4=3(x+1)

4=3x+3 This is the step he did incorrectly.

1=3x

1/3=x