А)4/15+у/15=1 б) 8/15-у/15=0 в)19/15-у/15=1 г)1-у/15=11/15 - вопрос №327804341515181515019151511151115 от ElizavetaMusic 18.04.2021 09:53

Question

Математика: А)4/15+у/15=1 б) 8/15-у/15=0 в)19/15-у/15=1 г)1-у/15=11/15

ElizavetaMusic · Answer

А) 4/15 + у/15 = 1 б) 8/15 - у/15 = 0 в) 19/15-у/15 = 1 г) 1-у/15 = 11/15
(4+у)/15 = 1    (8-у)/15 = 0 (19-у)/15 = 1    15-у = 11
4+у = 15       8-у = 0 19-у = 15    -у = 11-15
у = 15-4    -у = -8 -у = 15-19 у = 4
у = 11     у = 8    у = 4    1-4/15 = 11/15
4/15+11/15=1     8/15-8/15 = 0 19/15-4/15 = 1 15/15 - 4/15 = 11/15
15/15 = 1    0 = 0 15/15 = 1    11/15 = 11/15