Solve -x+-x

$$-x+-x$$

Evaluate

$$-2x$$

Solution Steps

Combine -x and -x to get 2\left(-x\right).

$$2\left(-x\right)$$

Multiply 2 and -1 to get -2.

$$-2x$$

Differentiate w.r.t. x

$$-2$$

Steps Using Definition of a Derivative

Combine -x and -x to get 2\left(-x\right).

$$\frac{\mathrm{d}}{\mathrm{d}x}(2\left(-x\right))$$

Multiply 2 and -1 to get -2.

$$\frac{\mathrm{d}}{\mathrm{d}x}(-2x)$$

The derivative of ax^{n} is nax^{n-1}.

$$-2x^{1-1}$$

Subtract 1 from 1.

$$-2x^{0}$$

For any term t except 0, t^{0}=1.

$$-2$$