3,7z--z=0,54 уравнение :

Question

3,7z--z=0,54 уравнение :

Answer 1

3,7z--z=0,542,7z=0.54
z=0.54:2,7
z=0,2

Answer 2

3.7z-z=0.54 2,7z=0.54
z=0.2
3.7*0.2-0.2=0.54
0.54=0.54