What is 4+(8+5-7)+9-(8+7)-9 ?

The solution to 4+(8+5-7)+9-(8+7)-9 is -5

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4+(8+5-7)+9-(8+7)-9

4 + (8 + 5 - 7) + 9 - (8 + 7) - 9

- 5

Solution steps

4 + (8 + 5 - 7) + 9 - (8 + 7) - 9

Follow the PEMDAS order of operations

Calculate within parentheses

(8 + 5 - 7) : 6

= 4 + 6 + 9 - (8 + 7) - 9

Calculate within parentheses

(8 + 7) : 15

= 4 + 6 + 9 - 15 - 9

Add and subtract (left to right)

4 + 6 + 9 - 15 - 9 : - 5

= - 5

- 8^{2} - 6 (- 8) + 7

7 + 7 \times 6

20 \cdot 3 \div 12 \cdot 8 \div 2

(- 2)^{2} - 3 (- 2) 3 + (3)^{2}

(- 9) \times (+ 4 - 8 + 6 - 2 + 5)