What is -20+(2-4)-7-(-5+3) ?

The solution to -20+(2-4)-7-(-5+3) is -21

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-20+(2-4)-7-(-5+3)

- 20 + (2 - 4) - 7 - (- 5 + 3)

- 21

Solution steps

- 20 + (2 - 4) - 7 - (- 5 + 3)

Follow the PEMDAS order of operations

Calculate within parentheses

(2 - 4) : - 2

= - 20 - 2 - 7 - (- 5 + 3)

Calculate within parentheses

(- 5 + 3) : - 2

= - 20 - 2 - 7 - (- 5 + 3)

Add and subtract (left to right)

- 20 - 2 - 7 - (- 5 + 3) : - 21

= - 21

9 + (- 1)^{2}

4 \cdot 3 + 6 \cdot 8 \div 3 - 10 \div 5

(\frac{8}{5} - \frac{3}{4}) + \frac{5}{6}

5 (- 3) + 2 (7)

2 (- 1)^{2} - 3 (- 1) - 1