$-5gm^2+3y^2vw+2n-2gm^2+5y^2wn-gm^2+y^2vw+n$

$\lim_{n\to-\infty}\left(1+e^{-nx}\right)$

$\frac{dy}{dx}=\frac{\left(x+3\cdot y\right)}{\left(-3\cdot x+y\right)}$

$\left(\frac{3}{2}+7b\right)^2$

$\lim_{x\to1}\left(\frac{1}{\ln\left(x\right)}-\frac{1}{x}\right)$

$3x+4y+z=-2$

$3\left(-2\right)^2-5+2$