Question

42:x=56:8 Nayti znaceniye virajeniya

Answer 1

42:x=56:8
42:x=7
x=42:7
x=6

Answer 2

Правильно !

Answer 3

42:х=56:8
42;х=7
х=42:7
х=6 
пров.42;6=56:8
              7=7