$\left(x+5\right)^2=x^2+5x+25$
$28+3x=10x$
$x-7<-1$
$\ln\left(x+3\right)=\ln\left(2x-4\right)$
$2x\left(x-2\right)=\left(x-3\right)\left(x+2\right)$
$0.6+-3<15$
$2x^2-y^2=8$
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