33*(3 1/3х-1 1/11х)=37
33*(3 1/3 * x - 1 1/11 * x) = 37 (33*3 + 33*1/3)*x - (33*1 + 33*1/11)*x = 37 (99+11)*x - (33+3)*x = 37 110x - 36x = 37 74x = 37 x = 37:74 Ответ: x = 0,5