Решите уравнение: а) 1-k = 3/5+1/10 б) t + 1 = 4/9 + 2/3 в) x + 2 3/8 =х 5 1/4 - 1 3/8

А) -к = 6/10+1/10-10/10
-к = -3/10
к = 3/10
б) t = 4/9 + 6/9 - 9/9
t = 1/9
в) х - 5 1/4х = -1 3/8 - 2 3/8
-4 1/4 х = -3 3/8
-17/4 х = - 27/8
х = (-27/8) / (-17/4)
х = 27/8 * 17/4 = 459/32 = 14 11/32