According to the associative property of equality: (a + b) + c = a + (b + c) we can see that the parenthesis do not mean anything when we are only doing addition.
So answers 1. and 3. are correct.
<em>Thanks Associative Property!</em>
The picture is completely black I’m not sure if that’s what you’re trying to fix but I think you didn’t uploads it correctly.
The answer to yo question is 4
