7) х+4967=439*27
х+4967=11853
х=11853-4967
х=6886
х-715=705*86
х-715=60630
х=60630+715
х=61345
х/13=679-314
х/13=365
х=365*13
х=4745
8) х+(37*42)=2031
х+1554=2031
х=2031-1554
х=477
(415-327)*х=440
88х=440
х=440/88
х=5
х/(74+26)=715
х/100=715
х=715*100
х=71500