Solve 3pi/4+(-1)*2pi

$$\frac{ 3 \pi }{ 4 } +(-1) \times 2 \pi$$

Evaluate

$$-\frac{5\pi }{4}\approx -3.926990817$$

Short Solution Steps

Multiply -1 and 2 to get -2.

$$\frac{3\pi }{4}-2\pi$$

To add or subtract expressions, expand them to make their denominators the same. Multiply -2\pi times \frac{4}{4}.

$$\frac{3\pi }{4}+\frac{4\left(-2\right)\pi }{4}$$

Since \frac{3\pi }{4} and \frac{4\left(-2\right)\pi }{4} have the same denominator, add them by adding their numerators.

$$\frac{3\pi +4\left(-2\right)\pi }{4}$$

Do the multiplications in 3\pi +4\left(-2\right)\pi .

$$\frac{3\pi -8\pi }{4}$$

Combine like terms in 3\pi -8\pi .

$$\frac{-5\pi }{4}$$