Question

求解一道方程.快!急啊!（x+20-10）*30％=（x-10）/3+5

Answer 1

（x+20-10）*30％=（x-10）/3+5

（x+10）*30%=（x-10）/3 +5

3x/10 +3 =x/3 -10/3 +5

两边乘30

9x +90 =10x-100+150

x=90+100-150

x=40