Question

5,6z-2z-0,7z+2,65=7 решите плз

Answer 1

2,9z+2,65=7
2,9z=7-2,65
2,9z=4,35
z=4,35:2,9
z=1,5

Answer 2

5,6z-2z-0,7z+2,65=7 ; 2,9z=7-2,65; z=4,35:2,9; z=1,5