x/0.2-(0.17-0.2x/0.03)=1 解方程

---

x/埋搜兄0.2-(0.17-0.2x/漏哪0.03)=1
(0.03-0.034+0.04x)/弯袭0.006=1
-0.004+0.04x=0.006
0.04x=0.01
x=0.25

---

5x-0.17+20x/盯枣橡3=1
35x/3=.117/100
x=117/岩绝100×3/35
x=117×3/凯旁100×35

---

x=1/90

---