What is 1-(2-3)\times 9 ?

The solution to 1-(2-3)\times 9 is 10

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1-(2-3)\times 9

1 - (2 - 3) \cdot 9

10

Solution steps

1 - (2 - 3) \cdot 9

Follow the PEMDAS order of operations

Calculate within parentheses

(2 - 3) : - 1

2 - 3

2 - 3 = - 1

= - 1

= 1 - (- 1) \cdot 9

Multiply and divide (left to right)

(- 1) \cdot 9 : - 9

(- 1) \cdot 9

Apply rule

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

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

= - 9

= 1 - (- 9)

Add and subtract (left to right)

1 - (- 9) : 10

1 - (- 9)

Apply rule

- (- a) = + a

- (- 9) = + 9

= 1 + 9

1 + 9 = 10

= 10

= 10

12 \times 9 \div 2

3 + 9 \cdot 5 + 2

41 + 5 \times 9 + (63 \div 7 - 4)

10 \times (13 \times 4 - 8^{2}) + 7

17 - (- 4) \times 5 + 18 \div (- 9) - 18