(360-2×80)/2=?
360/X-360/(1+50%)X=2
360/x-2=360/1.5x
解方程 360+2(x-360)/7+x/2=x(要过程)急!
(1)18*20=360 (18*2)*(20#2)=360 (18#9)*
360(n+2)+(360/n) =1350 解方程怎么解
6X-(360X-0.5X)=2×(360X-0.5X)
180(n-2)=2000-360\n
(n-2)*180/n=360/n*9
2x+4(360-x)=890
(n-2)*180=180n-360 怎么算.
2,2,6,36,360,( )
填空:360÷(____×2)=360÷18____ (什么符号)_____(数字)