Answer:
What do you exactly need to do?
Step-by-step explanation:
54% of the time. 21 and 45 is 66. Two hours is 120. The you subtract
Answer:

Step-by-step explanation:


This is because we subtract 456 from each side.

We then divide the whole equation by <em>x</em> .

Adding 50 to both sides gives us <em>x</em> by itself, hope this helps :D