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

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

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12(3)+3(-9)

12 (3) + 3 (- 9)

9

Solution steps

12 (3) + 3 (- 9)

Follow the PEMDAS order of operations

Multiply and divide (left to right)

12 (3) : 36

12 (3)

Apply rule:

(a) = a

(3) = 3

= 12 \cdot 3

Multiply the numbers:

12 \cdot 3 = 36

= 36

= 36 + 3 (- 9)

Multiply and divide (left to right)

3 (- 9) : - 27

3 (- 9)

Apply rule

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

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

= - 27

= 36 - 27

Add and subtract (left to right)

36 - 27 : 9

36 - 27

36 - 27 = 9

= 9

= 9

\frac{( \frac{5}{4} )}{- 5}

(200 \cdot 123) \div (50 \cdot 123)

3 + 4 (3)

\frac{1}{2} \times (- 1) - 1

15 - [- 5 - (7 - 5)] - 20