作业帮180/(x-15)-180/x=2
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180/(x-15)-180/x=2
180/(x-15)-180/x=2
180/(x-15)-180/x=2
180/(x-15)-180/x=2
90/(x-15)-90/x=1
90x-90(x-15)=x(x-15)
x^2-15x-1350=0
(x-45)(x+30)=0
x1=45,x2=-30
180/x -180/15-180/x=2
180/x -12-180/x=2
180/x -180/x=12+2
180/x -180/x=14
x-x=14
则无解!
180/(x-15)-180/x=2
180=( )x( )x( )x( ) ×( )
(x-2)+(x+2)+(x/2)+(2*x)=180
(180x-36*x)/(x+2x)*2x=(180x-36*x)/(x+2x)*x+36x 这个怎么解啊····
{(2X-2)*180/2X}-{(X-2)*180/X}=15
x=4x=254 5x-x=180 3x+x=16 4x-2x=28 15x-11x=12.8 (12+12*1.5)x=360 3.5(85=X)=560 (x+2x)*2=54 1.2x*1.5-1.5x=18*2怎么算
X+2X+(180-3X)=180 怎么算?
（x/5+180）+ 2*(x/5+180) = x
1.(X-2)*180+[180-(X-2)*180/X]=6002.(X-2)*180-(X-2)*180/X=3180
x+2x+2x=180° 急
(x-2)*180/x*x=360咋解
x+x÷3+2x-30=180
x+3x+1+x/2-1=180
x分之180-x+0.5x分之=2
180=( )x( )=( )X( )=( )X( )
(180-x)*15=12*x.
15(x+2.4)+21x=180
(300+X)/15=(180+X)/12