60.8 : (5,3х - 2,15) = 5
5,3х - 2,15 =60.8 : 5
5,3х - 2,15 =12,16
5,3х =12,16+2,15
5,3х =14,31
х =14,31/5,3
х=2,7
60.8 : (5,3х - 2,15) = 5
5,3х - 2,15 =60.8 : 5
5,3х - 2,15 =12,16
5,3х =12,16+2,15
5,3х =14,31
х =14,31/5,3
х=2,7