Х+ 3,8 = 72,85+5,4
х+3,8. = 78;25
х=78,25-3,8
х=74,45
х-23,58=150,78-37,6
х-23:58=113,18
х=113,18+23,58
х=136,76
10,36+(х+56,051)=120,309
х+56,051=120,309-10,36
х+56,051=130,669
х=130,669-56,051
х=74,618
35,56-(х+12,07)=18,49
х+12,07=35,56-18,49
х+12,07=17,07
х=17,07+12,07
х=5