$15-\left(-12+23\right)+\left(-24+11\right)$

$\frac{x+5}{x-1}-\frac{7-x}{x-1}$

$\frac{\left(x^{\frac{8}{7}}y^{\frac{3}{7}}\right)^{\frac{1}{8}}}{x^{\frac{5}{112}}y^{\frac{3}{28}}}$

$\left(4\sqrt{x}+2y^3\right)^4$

$5x+4\left(-6x-5\right)=132$

$\left(\left(\frac{a}{\sqrt{a^2+c^2}}\right)\left(-\sin\left(x\right)\right)\right)$

$log\left(\frac{\sqrt{x}}{y^3z^3}\right)$