What is -9+1+(-2)+(-1)+9 ?

The solution to -9+1+(-2)+(-1)+9 is -2

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-9+1+(-2)+(-1)+9

- 9 + 1 + (- 2) + (- 1) + 9

- 2

Solution steps

- 9 + 1 + (- 2) + (- 1) + 9

Follow the PEMDAS order of operations

Add and subtract (left to right)

- 9 + 1 = - 8

= - 8 + (- 2) + (- 1) + 9

Apply rule

+ (- a) = - a

+ (- 2) = - 2

= - 8 - 2 + (- 1) + 9

- 8 - 2 = - 10

= - 10 + (- 1) + 9

Apply rule

+ (- a) = - a

+ (- 1) = - 1

= - 10 - 1 + 9

- 10 - 1 = - 11

= - 11 + 9

- 11 + 9 = - 2

= - 2

Number Line

= - 2

5 - \frac{2}{3} + \frac{7}{6} - 6 - \frac{1}{4}

1 5^{2} + 7^{2}

- 2 (- 1)^{2} + 3

5 + 20 - 4^{2}

2^{2} + 4^{3} + 3^{3} \cdot 2^{2}