Question

Даю 50 балов 1.1*(2|x|-3)-2*(0.8+|x|)=0.9

Answer 1

1.1(2|x|-3)-2(0.8+|x|)=0.9
_
|x, если x>=0
|_-x, если x<0
1.1(2x-3)-2(0.8+x)=0.9
2.2x-3.3-1.6-2x=0.9
0.2x-5.8=0
0.2(x-29)=0
x=29
   
1.1(-2x-3)-2(0.8-x)=0.9
-2.2x-3.3-1.6+2x=0.9
-0.2x-5.8=0
-0.2(x+29)=0
x=-29