Algebra Year 7 quiz

This picture right here is a picture showing a algebra question and answer.
If you can see there is a hint button, and when you press that you get help if you are stuck on a algebra or any other question.
So what you have to do is to solve out the algebra maths problem and think of it in your head or write it down in a book. If you are stuck go on ahead and press the hint button but before doing that keep trying and think harder. Here is a example: Equation- X + 5 = 15.... So what you have to do is if you add 5

my number you get 15. What is my number?
the answer is 10 because 10 + 5 = 15.
Another one is: Equation- X - 13 = 13..... So you have to subtract 13 from my number you get 13. What is my number?  The answer is X = 26 because if you go 26 - 13 = 13 then you get 13. It's all confusing at the start, but you will get the hang of it sooner or later. To try it out for yourself just click here and you can go and test yourself.