$y\:-9\:=13$

$43+51+65-94+12-86$

$x+93=-108$

$\int\left(q-w\right)^2dq$

$\int\frac{\left(x^2-x+4\right)}{\left(\left(x+2\right)\left(x-1\right)\right)}dx$

$24a^6\:y^3+4a^4\:y^2-12a^3\:y$

$\sin\left(x\right)\left(\tan\left(x\right)+\cot\left(x\right)\right)=\cos\left(x\right)$