$15-\left(-4\right)-\left(-34\right)$
$8+n=5\left(n-4\right)$
$\left(\frac{1}{4}x^4\right)^3$
$-9+1+-17+15$
$\left(2c-5d\right)^2$
$1-3-4+4$
$3\sin2\left(x\right)-2\sin\left(x\right)=0$
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