to solve this just let's say that the number we are looking for is x so we can put this into an equation. Add 5
x+5
If the problem says "add 5 and then Multiply by 10 you would have to write that this way
10(x+5)
answer is 630 means = 630
10(x+5)=630
Then solve for x. Distrubute the 10
10x+50=630
subtract 50
10x=580
divide by 10
x=58
Depending on exactly how the question is wiritten you might write it this way instead
10x+5=630 and x would be 62.5
I would show your teacher both ways and see what she wants. The question is confusing.