Question

0,2(5z-2)=0,3(2z-1)-0,9 решите уравнение ПЖ

Answer 1

0,2(5z-2)=0,3(2z-1)-0,9
z-0.4=0.6z-0.3-0.9
z-0.6z=0.4-0.3-0.9
0.4z=0.8
z=2