Question

0.4x+0.4-2(x+2) помогите....

Answer 1

0,4х+0,4-2(х+2)=0;
0,4х-2х=-0,4+4;
-1,6х=3,6;
х=2,25.

Answer 2

=0.4х+0.4-2х-4=-1.6х-3.6