$\frac { 1 } { 2 } = \frac { 1 } { p }$
$5\sin\left(x\right)-\cos\left(2x\right)-2=0$
$87\cdot1$
$2-3\:x\:1$
$x^3-49$
$y^5\cdot y\cdot y^2$
$7x-3y+7y-5x+8x$
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