428000 - (х + 28234) = 243146
428000-(х+28234)=243146 Х+28234=428000-243146 Х+28234=184854 Х=184854-28234 Х=156620
Х + 28234 = 428000 - 243146 х + 28234 = 184854 х = 184854 - 28234 х = 156620