Question

Need help with these questions

Answer 1

#4
[9(7-3)+13] - [11-(6+9)]
[9(4)+13] - [11-15]
[36+13] - [-4]
49- (-4)
49+4
ANSWER 53

#5
-4+(2-5)+[-(-3)]
-4+(-3)+3
ANSWER -4

Answer 2

for question no 4

answer is 53

for question no 5

answer is -10