on a horizontal number line . numbers to the left are less than numbers to the right .. numbers to the right are less than numbers to the left
You have to know how long it takes them both to solve the puzzles. ;)
Answer:

Step-by-step explanation:
<h3><u>TO SOLVE:</u></h3>
With exponent rule.
<h3><u>SOLUTIONS:</u></h3>
First, use exponent rule.
<u><em>EXPONENT RULE:</em></u>
<u><em /></u>


Solve.
Add the numbers from left to right.


So, the final answer is x¹².
in step 2 he made his first mistake
1/2(n-4)-3=3-(2n+3)
1/2n-4/2-3=3-(2n+3)
1/2n-2-3=3-(2n+3)
in the second step he put 5 instead of 2.