*方程式*

(1).
2/h - 2.25 = 8.33333..
2/h = 10.583333..
h = 0.1889764375..

(2).
4/17 (i + 5) = 68
i + 5 = 68 (17/4)
i + 5 = 289
i = 284

(3).
4/r + 1.4 = 3.625
4/r = 2.225
r = 1.7977528 (1.7977528089887640449438202247191..)

(4).
t (1.666... + 3.777...) = 2.333...
t (5.444...3) = 2.333...
t = 2.333... / (5.444...3)
t = 0.428571428

(5).
5 / 3v - 8 * 6.625 = 1
5 / 3v - 53 = 1
5 / 3v = 54
5 = 162v
v = 5 / 162
v = 0.0308641975308 (Question 好似寫到 "5 除以 3v" 而唔喺 "5 除以 3 再乘 v" !!)

(6).
5.5 + 7 / k =26.5
7 / k = 21
k = 7 / 21
k = 0.333...

(7). 6 / 5s - 3 = 4.5
6 / 5s = 7.5
6 = 37.5s
s = 6 / 37.5
s = 0.16 (Question 好似寫到 "6 除以 5s" 而唔喺 "6 除以 5 再乘 s" !!)

2/h-2.25=8.33333..
2/h=1.833333..
h=0.184615384

4/17(i+5)=68
i+5=68(17/4)
i+5=289
i=284

4/r+1.4=3.625
4/r=2.225
r=1.797752809

t(1.666...+3.777...)=2.333...
t(5.444....3)=2.333...
t=0.428571428

5/3v-8×6.625=1
5/3v-53=1
5/3v=54
v=32.4

5.5+7/k=26.5
7/k=21
k=7/21
k=1/3 或 0.333....

6/5s-3=4.5
6/5s=7.5
s=7.5(5/6)
s=6.25