$x+2=\sqrt{x+7}$

$\frac{x+8}{2}=x-10$

$x^2\cdot z''\left(x\right)-xy\cdot z''\left(y\right)=z-y$

$\sec\left(123\right)^2+\tan\left(123\right)x^2=\frac{1}{\sin\left(x\right)^2\cdot\cos\left(x\right)^2}$

$1+216z^9$

$\int\left(13csc^2\left(x\right)\right)dx$

$\left|-19\right|$