What is 12-2\times 8+2-(-9) ?

The solution to 12-2\times 8+2-(-9) is 7

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12-2\times 8+2-(-9)

12 - 2 \cdot 8 + 2 - (- 9)

7

Solution steps

12 - 2 \cdot 8 + 2 - (- 9)

Follow the PEMDAS order of operations

Multiply and divide (left to right)

2 \cdot 8 : 16

2 \cdot 8

2 \cdot 8 = 16

= 16

= 12 - 16 + 2 - (- 9)

Add and subtract (left to right)

12 - 16 + 2 - (- 9) : 7

12 - 16 + 2 - (- 9)

12 - 16 = - 4

= - 4 + 2 - (- 9)

- 4 + 2 = - 2

= - 2 - (- 9)

Apply rule

- (- a) = + a

- (- 9) = + 9

= - 2 + 9

- 2 + 9 = 7

= 7

= 7

3 + 3 \times 3 + 3

2 - 3 (- 4) + 5 (2 \times 3 - 5) - 1

- 3 \times (2 + 4)

5 + 9 (1 + 2)^{2}

(- 4)^{2} + 3 (- 4) - 6