Решите уравнения: а) 15/(7-y) = 5 б) 42/y = 3 в) (12+y)/9 = 3 г) (14+х )/9 = 5 д) y - 13/27 = 10/27 е) 4 1/5 + x = 7 4/5 ж) (8/15 + x) - 7/15 = 11/15 з) x/42 - 5/42 = 35/42

1)17*(14+26)=6802)(245-80):11=153)150:(5*6)=55)(15-12)*(84:6)=426)(343:7)+(15*5)=124

а) 7-y = 3; y = 4б) y = 14в) 12+y = 27; y = 15г) 14+x = 45; x = 31д) y = 23/27е) x = 3 3/5ж) 8/15+x = 18/15; x = 10/15; x = 2/3з) x/42 = 40/42; x = 40/42 * 42; x = 40