What is 9+12-(-9)(-3) ?

The solution to 9+12-(-9)(-3) is -6

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9+12-(-9)(-3)

9 + 12 - (- 9) (- 3)

- 6

Solution steps

9 + 12 - (- 9) (- 3)

Follow the PEMDAS order of operations

Multiply and divide (left to right)

(- 9) (- 3) : 27

(- 9) (- 3)

Apply rule

(- a) \cdot (- b) = a \cdot b

(- 9) (- 3) = 9 \cdot 3 = 27

= 27

= 9 + 12 - 27

Add and subtract (left to right)

9 + 12 - 27 : - 6

9 + 12 - 27

9 + 12 = 21

= 21 - 27

21 - 27 = - 6

= - 6

= - 6

1 \times 2^{2}

15 \times (- 7) + (- 18) \times (- 40) \times (- 1)

(5^{2} + 5) (5^{3} - 3^{5})

- 2 (- 3) - 5

[(2 + 5 + 2 + 5^{2}) + 2^{3}] \div 6