|3 + 10| = |3| + |10|
|13| = 13
13 = 13
They do equal with each other.
Absolute values indicate the numbers that are inside those lines will always come out positive. For example, for |3+10|, all you do is solve like you would with parenthesis but the only difference is when you do that is (like I said earlier) you make it come out as positive. And don’t get afraid if you see something like this: -|3-2|. Solve within those lines and make it positive but add that negative in it. I hope this helped you! Comment if you need any more help.