What is (-6)+(-4)+(+9)+(-8) ?

The solution to (-6)+(-4)+(+9)+(-8) is -9

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(-6)+(-4)+(+9)+(-8)

(- 6) + (- 4) + (+ 9) + (- 8)

- 9

Solution steps

(- 6) + (- 4) + (9) + (- 8)

Follow the PEMDAS order of operations

Add and subtract (left to right)

Apply rule

+ (- a) = - a

+ (- 4) = - 4

= (- 6) - 4 + (9) + (- 8)

(- 6) - 4 = - 10

= - 10 + (9) + (- 8)

- 10 + (9) = - 1

= - 1 + (- 8)

Apply rule

+ (- a) = - a

+ (- 8) = - 8

= - 1 - 8

- 1 - 8 = - 9

= - 9

15 - (3 - 2) + (7 - 4)

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(3 \times 4)^{2}

3 (7)^{2}

2 - [3 + 4 (5 - 3)]