What is (+15)+(-6)+(+5)+(-4) ?

The solution to (+15)+(-6)+(+5)+(-4) is 10

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(+15)+(-6)+(+5)+(-4)

(+ 15) + (- 6) + (+ 5) + (- 4)

10

Solution steps

(15) + (- 6) + (5) + (- 4)

Follow the PEMDAS order of operations

Add and subtract (left to right)

Apply rule

+ (- a) = - a

+ (- 6) = - 6

= (15) - 6 + (5) + (- 4)

(15) - 6 = 9

= 9 + (5) + (- 4)

9 + (5) = 14

= 14 + (- 4)

Apply rule

+ (- a) = - a

+ (- 4) = - 4

= 14 - 4

14 - 4 = 10

= 10

- {20 - [50 + (20 - 10 - 20 + 5)]}

(- 7) \cdot [4 \cdot (3 - 8) - 5 \cdot (8 - 5)]

- 2 + 3 (- 1 + 1)

- (2)^{4} - 2^{3} + 2^{2} + 2 - 1

7 + (- 2) \cdot 3^{2}