Question

решите уравнение 7,2x+5,4=-3,6x-5,4

Answer 1

7,2х+3,6х=-5,4-5,4
10,8х=-10,8
х=-1

Answer 2

7,2х+5,4=-3,6х-5,4;
7,2х+3,6х= -5,4-5,4;
10,8х=-10,8;
х=-10,8:10,8;
х=-1.