$$3x-\frac{5}{6}=\frac{13}{6}$$

$$\log_{11}\left(a\right)=15$$

$$yx-x^2-2x^3$$

$$10:\left(-5\right).\left(-1\right)-5.2+15:\left(-2-3\right)$$

$$\frac{d}{dx}\ln\left(\frac{\sqrt{x}}{2^xtan^5x}\right)$$

$$\frac{-x^5-3x^2-x^2+1}{-x^2+2x+1}$$

$$24=8n$$