Question

решите уровнение номер 824
2) |y|-2=1
3)|2×|+3=9
номер 827
1)|×-4|=2​

Answer 1

$1)|y|-2=1.\\ |y|=2+1=3.\\ y_{1} =3.\\ y_{2} =-3.\\\\ 2) |2x|+3=9\\ 2|x|=9-3\\ 2|x|=6\\ |x|=3\\ x_{1} =3.\\ x_{2} =-3.\\\\ 3)\\ |x-4|=2\\ \left \{ {{x-4=2} \atop {x-4=-2}} \right. => \left \{ {{x_{1} =2.} \atop {x_{2} =6.}} \right.$