Question

-(4-7)
How do you do this?

I got -4+7
(Is that right)​

Answer 1

The mathematical expression you provided -4 + 7 is correct.
The result of the operation is 3.
You are adding 7 to -4, so you would start with -4 and count up 7 steps which gives you 3 as a result.
In mathematical notation, the plus sign (+) indicates addition and the minus sign (-) indicate subtraction. In this case you have -4+7 so it's -4 plus 7.

Answer 2

a double negative will result in a positive so
-(4-7)
= -4+7
=3