What is -5+6+(-9)+2+10+(-15) ?

The solution to -5+6+(-9)+2+10+(-15) is -11

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-5+6+(-9)+2+10+(-15)

- 5 + 6 + (- 9) + 2 + 10 + (- 15)

- 11

Solution steps

- 5 + 6 + (- 9) + 2 + 10 + (- 15)

Follow the PEMDAS order of operations

Add and subtract (left to right)

- 5 + 6 = 1

= 1 + (- 9) + 2 + 10 + (- 15)

Apply rule

+ (- a) = - a

+ (- 9) = - 9

= 1 - 9 + 2 + 10 + (- 15)

1 - 9 = - 8

= - 8 + 2 + 10 + (- 15)

- 8 + 2 = - 6

= - 6 + 10 + (- 15)

- 6 + 10 = 4

= 4 + (- 15)

Apply rule

+ (- a) = - a

+ (- 15) = - 15

= 4 - 15

4 - 15 = - 11

= - 11

Number Line

= - 11

- 7 - 1 \cdot (8 - 6) + 9

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4 (2 - 6) + \frac{1}{2} - \frac{3}{2}