$$-7w-10=18$$

$$\cot\left(x\right)^2+4\csc\left(x\right)^2=-5$$

$$\frac{dy}{dx}=2x\sqrt{3y-2}$$

$$-7y-6y^3+2y+4y^3-5-1-2y^3$$

$$2^{20}$$

$$\:-81x\:+19y\:-30z\:+\:6y\:+80x\:+\:x\:-25y+7z\:$$

$$\left(5\right)\left(-11\right)\left(+22\right)$$