What is 1/2 \times (-1)-1 ?

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

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1/2 \times (-1)-1

\frac{1}{2} \cdot (- 1) - 1

- \frac{3}{2}

Solution steps

\frac{1}{2} (- 1) - 1

Follow the PEMDAS order of operations

Multiply and divide (left to right)

\frac{1}{2} (- 1) : - \frac{1}{2}

= - \frac{1}{2} - 1

Add and subtract (left to right)

- \frac{1}{2} - 1 : - \frac{3}{2}

= - \frac{3}{2}

15 - [- 5 - (7 - 5)] - 20

- 2 (- 1)^{2} + 5

7^{2} - 8^{2} + 7

(3 - 2^{2}) + 5

(2 + 6)^{2}