有功課唔識

t+1/6=5t-1/6+0.6
6t + 1 = 30t - 1 + 3.6
- 24t = 3.6
t = 3.6 / - 24
t = - 0.15

t=5t-1/6+0.6-1/6
t=5t=0.6
-4t=0.6
t=-0.15

t+1/6=5t-1/6+0.6
6t + 1 = 30t - 1 + 3.6
- 24t = 3.6
t = 3.6 / - 24
t = - 0.15

(6t+1)/6=(30t-1)/6+6/10
5(6t+1)=5(30t-1)+18
30t+5=150t-5+18
-8=120t
t=-1/15

t = - 1/15

t+1/6=5t-1/6+0.6
(t+1/6) - t - 1/6 = (5t-1/6+0.6 ) - t - 1/6
0 = 4t -10/30 + 18/30
0 = 4t +8/30
-4t = 4/15
t= -1/15

t =5t-1/6+0.6 -1/6
-4t=4/15
t =-1/15

不如你問家人吧！