What is -18+21+(-15)+(-37)+18 ?

The solution to -18+21+(-15)+(-37)+18 is -31

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-18+21+(-15)+(-37)+18

- 18 + 21 + (- 15) + (- 37) + 18

- 31

Solution steps

- 18 + 21 + (- 15) + (- 37) + 18

Follow the PEMDAS order of operations

Add and subtract (left to right)

- 18 + 21 = 3

= 3 + (- 15) + (- 37) + 18

Apply rule

+ (- a) = - a

+ (- 15) = - 15

= 3 - 15 + (- 37) + 18

3 - 15 = - 12

= - 12 + (- 37) + 18

Apply rule

+ (- a) = - a

+ (- 37) = - 37

= - 12 - 37 + 18

- 12 - 37 = - 49

= - 49 + 18

- 49 + 18 = - 31

= - 31

8^{2} (3 + 2) - 11

2 - 1 - 4 - 5

4 (0)^{2} - 5

3 (5)^{2} - 18 (5) + 24

2 (- 1)^{4}