Решите уравнение (5/6x+1/7)умножить на 42 = 82
(5/6x + 7/8x)*42 = 82 (20/24x + 21/24x)*42 = 8241/24х * 42 = 8241/24х = 82/42х = 82/42 : 41/24х = 82/42 * 24/41х = 8/7 = 1 1/7
5/6x + 7/8x)*42 = 82 (20/24x + 21/24x)*42 = 82 41/24х * 42 = 82 41/24х = 82/42 х = 82/42 : 41/24 х = 82/42 * 24/41 х = 8/7 = 1 1/7
чет залагало, лучше перепиши с комента