$9x-7=-7$
$\left(sin\:x\:+\:cos\:x\right)^2\:-\:2\:tan\:x\:cos^2\:x\:$
$2x\le28$
$5x+4y=44$
$3+2x\ge1-x^2+8x$
$\int\left(7\sqrt{x}+5x\right)x^3dx$
$-5\cdot\left(-8\right)\cdot\left(-10\right)$
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