x÷3.5+10.8=52.8 x=?
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x÷3.5+10.8=52.8x=?x÷3.5+10.8=52.8x=?x÷3.5+10.8=52.8x=?x÷3.5+10.8=52.8x÷3.5=52.8-10.8x÷3.5=42x=42×3.5
x÷3.5+10.8=52.8 x=?
x÷3.5+10.8=52.8 x=?
x÷3.5+10.8=52.8 x=?
x÷3.5+10.8=52.8
x÷3.5=52.8-10.8
x÷3.5=42
x=42×3.5
x=147
12
x÷3.5+10.8=52.8 x=?
(x+x)+(x-x)+(x*x)+(x÷x)=81
（X+X)+(X-X)+(X*X)+(X/X)=100
x*x*x*x*x=80000?
3.5x-x=7.x=?
X-3.65=x÷3.5
X÷48%=X+(X+32)
解方程:(1)x-0.75x=12(2)2.8x+x=7.6(3)2.36x+2.64x=18(4)3.5x-1.5x=10.8
解方程 3.5 X—1.5 X=10.8 2.36 X+2.64 X=18 X—0.75 x=12 2.8 X+ X=7.6 、
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
6.5x-4.5x=93.6-6.5x-3.5x
3.5x-x=17.5
x+12.5=3.5x
x+12.5=3.5x
4.5X-X=3.5
x+12.5=3.5x
x+3.5x=9.
3.5x=x-3.65