What is -12+(-15)-23+18-(-9)+(-15) ?

The solution to -12+(-15)-23+18-(-9)+(-15) is -38

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-12+(-15)-23+18-(-9)+(-15)

- 12 + (- 15) - 23 + 18 - (- 9) + (- 15)

- 38

Solution steps

- 12 + (- 15) - 23 + 18 - (- 9) + (- 15)

Follow the PEMDAS order of operations

Add and subtract (left to right)

Apply rule

+ (- a) = - a

+ (- 15) = - 15

= - 12 - 15 - 23 + 18 - (- 9) + (- 15)

- 12 - 15 = - 27

= - 27 - 23 + 18 - (- 9) + (- 15)

- 27 - 23 = - 50

= - 50 + 18 - (- 9) + (- 15)

- 50 + 18 = - 32

= - 32 - (- 9) + (- 15)

Apply rule

- (- a) = + a

- (- 9) = + 9

= - 32 + 9 + (- 15)

- 32 + 9 = - 23

= - 23 + (- 15)

Apply rule

+ (- a) = - a

+ (- 15) = - 15

= - 23 - 15

- 23 - 15 = - 38

= - 38

- 2 - 4 + (- 8 + 4 - 6 + 7)

- 6 \times (- 6) \times (- 6)

4 - 2 [5 - 2 (4 - 2)] \div 2

2 \cdot 5^{2}

14 + 18 \div 2 \times 18 - 7

What is -12+(-15)-23+18-(-9)+(-15) ?
The solution to -12+(-15)-23+18-(-9)+(-15) is -38