Answer:
60
Explanation:
Distribute the 4 to the 3 and 7
you will get 12 + 28
Drop everything else down
Next get rid of the exponent
you should get 36
12 + 28 - 20 + (36 + 4) should be your problem now
Get rid of the last parentheses
12 + 28 - 20 + 40 should be your problem
12 + 28 equals 40
40 - 20 + 40 is now your problem
40 - 20 is 20
20 + 40 is now your problem
20 + 40 is 60
60 is your answer