Question

Question:
15-4+ (7 - 5)

Answer 1

13

Explanation:

15 - 4 + ( 7 - 5)

remember the order of operations

simplify parenthesis first

15 - 4 + ( 7 -5 )

15 - 4 + ( 2 )

now solve in order ( from left to right)

15 - 4 + 2

11 +2

13

Answer 2

13

Explanation:

15 - 4 + 7 - 5 = 13

Simply expand the brackets and subtract and add accordingly.