Question

решите уравнение
5[х]+1=7

Answer 1

$displaystyle tt 5|x|+1=7\displaystyle tt 5|x|=7-1\displaystyle tt 5|x|=6\displaystyle tt |x|=6div5\displaystyle tt |x|=1,2\\displaystyle tt bold{x_1=1,2}\displaystyle tt bold{x_2=-1,2}$