The solution to 2(3)-9(-1) is 15

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2(3)-9(-1)

Solution

2 (3) - 9 (- 1)

15

Solution steps

2 (3) - 9 (- 1)

Follow the PEMDAS order of operations

Multiply and divide (left to right)

2 (3) : 6

2 (3)

Apply rule:

(a) = a

(3) = 3

= 2 \cdot 3

Multiply the numbers:

2 \cdot 3 = 6

= 6

= 6 - 9 (- 1)

Multiply and divide (left to right)

9 (- 1) : - 9

9 (- 1)

Apply rule

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

9 (- 1) = - 9 \cdot 1 = - 9

= - 9

= 6 - (- 9)

Add and subtract (left to right)

6 - (- 9) : 15

6 - (- 9)

Apply rule

- (- a) = + a

- (- 9) = + 9

= 6 + 9

6 + 9 = 15

= 15

= 15

\frac{5}{4} (20) + 20

12/3 - 10/15 \times [1/6 + (3/6 \times 1/6)]

6 - \frac{52}{11} + \frac{73}{22}

9 (2) + 6

65 - 32 \div 8 - 15 + 9