(74109-t)+3367=70258
74109-t=70258-3367 74109-t=66891 t=74109-66891 t=7218
(74109-t)+3367=70258 74109-t=70258-3367 74109-t=66891 t=74109-66891 t=7218 _____ (74109-7218)+3367=70258 70258=70258