What is 13-3[8+(4-9)] ?

The solution to 13-3[8+(4-9)] is 4

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13-3[8+(4-9)]

13 - 3 [8 + (4 - 9)]

4

Solution steps

13 - 3 [8 + (4 - 9)]

Follow the PEMDAS order of operations

Calculate within parentheses

[8 + (4 - 9)] : 3

8 + (4 - 9)

Calculate within parentheses

(4 - 9) : - 5

4 - 9

4 - 9 = - 5

= - 5

= 8 - 5

Add and subtract (left to right)

8 - 5 : 3

8 - 5

8 - 5 = 3

= 3

= 3

= 13 - 3 \cdot 3

Multiply and divide (left to right)

3 \cdot 3 : 9

3 \cdot 3

3 \cdot 3 = 9

= 9

= 13 - 9

Add and subtract (left to right)

13 - 9 : 4

13 - 9

13 - 9 = 4

= 4

= 4

4 + 5 \times 2 - 3 \times 3 + 12 \div 3

56 + [70 + (45 - 12) - 56 + 2]

2^{200} + 2^{200} + 2^{200} + 2^{200}

(1 \div 4) - (1 \div 2)

2 (- 1)^{2} + 8 (- 1)