Answer:
see below
Explanation:
Here are the steps that Frank took:
1/5t+2=17
1/5t+2-2=17
1/5t=17
t=85
Frank is incorrect. He is incorrect because in step 2, he forgot to subtract both sides by 2, and only did this to the left side of the equal sign. He has to subtract 2 from both sides of the equal side to have the equation remain balanced. Frank should've gotten t=75.
Hope this helps! :)