Question

Raul tried to evaluate an expression step by step 3-(-5)-7 =3+5-7 =3+2 =5

Answer 1

Explanation:

Raul's steps are incorrect. The correct steps to evaluate the expression 3-(-5)-7 would be:

3-(-5)-7 = 3+5-7 (Using the order of operations, first we have to evaluate the parentheses, since the negation sign is inside it)

= 8-7 (After evaluating the parentheses)

= 1 (Subtracting 7 from 8)

So, the expression 3-(-5)-7 = 1