Question

What expression is equivalent to -9-(-7)answer options-9-7-9+7-9+-79+7

Answer 1

The equivalent expression is -9 + 7

Here, we want to get the expression equal to what is given

What we have to do here is to open up the bracket by multiplying the sign inside the bracket with the sign outside

Mathematically, we have this as;

`-9-(-7)\text{ = }-9+7`