4 5/12+у=-5 3/20. Помогите плиз

y = - 5 3/20 - 4 5/12y = - 103 / 20 - 53/12y = - (309 + 265) / 60y = - 574/60y = - 287 / 30y = - 9 17/30

4 5/12+у=-5 3/20у=-5 3/20-4 5/12у=-5 9/60-4 25/60у=-9 34/60у=-9 17/30