2/10 (or 1/5 ) Times 2/10 (or 1/5).
This will equal a 1 out of 25 chance.
You take the number of items you are looking for ( for example, 2 Tomato Cans) Divided by the total items you have (All 10 cans that are a possibility). Then you take your probabilities, and multiply them.
D:) infinitely many solutions
-(x-3)=-x+3
First, distribute -1 to x and -3.
-x+3=-x+3
As you can see, both sides are equal. You can continue to simplify:
Add x to both sides to get rid of the variable.
3=3 or infinitely many solutions because x can equal any number and still be equal to the other side.
I hope this helps :)