Question

86,4:(35,4-0,08*|x|)=-16

Answer 1

$displaystyle tt 86,4div(35,4-0,08cdot|x|)=-16 : : : : : | : xne442,5;: : xne-442,5\\ displaystyle tt frac{432}{5}div(frac{177}{5}-frac{2}{25}cdot|x|)=-16\\ displaystyle tt frac{432}{5}divfrac{885-2cdot|x|}{25}=-16\\ displaystyle tt frac{432}{5}cdotfrac{25}{885-2cdot|x|}=-16\\ displaystyle tt 432cdotfrac{5}{885-2cdot|x|}=-16\\ displaystyle tt frac{2160}{885-2cdot|x|}=-16$

$displaystyle tt 2160=-16(885-2cdot|x|) : : : : : | div16\displaystyle tt 135=-(885-2cdot|x|)\displaystyle tt 135=-885+2cdot|x|\displaystyle tt -2cdot|x|=-885-135\displaystyle tt -2cdot|x|=-1020 : : : : : | div (-2)\displaystyle tt |x|=510\displaystyle tt bold{x_1=510}\displaystyle tt bold{x_2=-510}$