What is [6+(4\times 3)]-[15-9] ?

The solution to [6+(4\times 3)]-[15-9] is 12

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[6+(4\times 3)]-[15-9]

[6 + (4 \cdot 3)] - [15 - 9]

12

Solution steps

[6 + (4 \cdot 3)] - [15 - 9]

Follow the PEMDAS order of operations

Calculate within parentheses

[6 + (4 \cdot 3)] : 18

= 18 - [15 - 9]

Calculate within parentheses

[15 - 9] : 6

= 18 - 6

Add and subtract (left to right)

18 - 6 : 12

= 12

3 0^{2} - 1 5^{2}

[2 (10)]^{2} - [3 (5)]^{3}

4 (1) - 6

4 (1) + 2

(- 24) - (- 5) - (+ 30) - (- 25) - (+ 13)