What is -1/2 (-2)-4 ?

The solution to -1/2 (-2)-4 is -3

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-1/2 (-2)-4

- \frac{1}{2} (- 2) - 4

- 3

Solution steps

- \frac{1}{2} (- 2) - 4

Follow the PEMDAS order of operations

Multiply and divide (left to right)

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

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

Apply rule

- a \cdot (- b) = a \cdot b

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

Convert element to fraction:

2 = \frac{2}{1}

= \frac{1}{2} \cdot \frac{2}{1}

Cross-cancel common factor:

2

= 1

= 1 - 4

Add and subtract (left to right)

1 - 4 : - 3

1 - 4

1 - 4 = - 3

= - 3

= - 3

5 0^{2} - (- 5^{2})

- (- 2)^{2} - 3

1 3^{2} - 1 5^{2} + 7^{2} + (17 - 10)

(5 \div 6) - (1 \div 12) + (3 \div 2)

\frac{4 ^{5} \times ( 4 ^{0} + 4 )}{4}