x/3=(x-120)/60 * 30 怎么解
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x/3=(x-120)/60*30怎么解x/3=(x-120)/60*30怎么解x/3=(x-120)/60*30怎么解x/3=(x-120)/60*30x/3=(x-120)*1/60*30x/3=
x/3=(x-120)/60 * 30 怎么解
x/3=(x-120)/60 * 30 怎么解
x/3=(x-120)/60 * 30 怎么解
x/3=(x-120)/60 * 30
x/3=(x-120)*1/60*30
x/3=(x/60-2)*30
x/3=x/2-60
x/3-x/2=-60
-x/6=-60
x=60*6
x=360
x/3=(x-120)/60 * 30
两边同时乘以6,即得2x=3*(x-120)
即3x-2x=3*120
x=360
60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2
x/(120-x)=x/60
x/3=(x-120)/60 * 30 怎么解
x/50-3=x/60+2 (15+25/x)=120/10+x
12—120%X=6 5分之3X—5%X=5.5 (1+25%)X=7.5 X—30%X=91 4%X+6%X=29.4 X+25%X=8.75
求几道解方程数学题60%x+25=40 x+30%x=52 19-120%x=7 x-10%x=18 (1-25%)x=362x+30%x=9.260%x+90=102 x-20%=5.2 50%x+3x=28 9.1-14%x=0.7
60+3x=120+2x x=?
x/(120-x)=(60-x)/60
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
x+2/3x=60 x-3/5x=120 4x+18x=1x+2/3x=60 x-3/5x=120 4x+18x=132!
x+3分之2 x=60 x-5分之3x=120 4x+18x=132x+3分之2 x=60 x-5分之3x=120 4x+18x=132
60x(x-4)=30x
(30+x)/(70+x)=3 x=
7x-3x+x=60
3X+30+X+X-15=?
x+35=(x+3x)*30%
:① 60%÷120%-3X=20% ② 1÷(X+三分之二)=80% @ X+75%X=15 @75%X-三分之一X=10
x+2/3x=60 x-2/5x=120 4x+18x=132