0.75x+0.5x=2.25
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0.75x+0.5x=2.250.75x+0.5x=2.250.75x+0.5x=2.250.75x+0.5x=2.251.25x=2.25x=2.25÷1.25x=1.8
0.75x+0.5x=2.25
0.75x+0.5x=2.25
0.75x+0.5x=2.25
0.75x+0.5x=2.25
1.25x=2.25
x=2.25÷1.25
x=1.8
0.75x+0.5x=2.25
0.5x=0.75(1000-x)
0.5x-6=0.75x
（X+X)+(X-X)+(X*X)+(X/X)=100
2.6x-x-0.1x=0.75
0.5X+120+0.3X=X
4X+0.5X=13.5X
x-30-0.2x=0.5x
x-0.3x-0.5x=20
9x+0.5x+x=
(0.5x+1)+(0.25x+0.5)+(0.125x+2.25)=x怎么解,
0.75x+x=17.5
x-25%x=0.75
x-0.75x=1.
X+0.5X=3 X-0.8X=8
求x:|x|-|x-4|=0.5x-1
x*x*x*x*x=80000?
x+0.5x=30