0.4x=8.2-4.2
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0.4x=8.2-4.20.4x=8.2-4.20.4x=8.2-4.20.4x=8.2-4.20.4x=4x=4/0.4X=10
0.4x=8.2-4.2
0.4x=8.2-4.2
0.4x=8.2-4.2
0.4x=8.2-4.2
0.4x=4
x=4/0.4
X=10
0.4x=8.2-4.2
x-0.8x=0.4x=?
x-0.8x=4.2
X-0.4X=36
X+0.4X=21
X-0.4X=0.54
x-0.4x=0.
0.4X=X-50
X-0.4x=0.39
X—0.4x=4.2 怎么解方程呢?
0.2x+0.4x=12 x=?20x+x=420 x=?
0.95*4+6x=5 4.2(x-2)=8.4 (x+3.2)*0.4=1.6 x-1.1+0.6=2.4 8.7(x-5.9)=09.2x-x=49.2 x+2.5x=0.7 x-0.76x=0.96 12x=300-4x
（X+X)+(X-X)+(X*X)+(X/X)=100
1.8x()+8.2x()=6.5x是乘号!
0.6X+1.4X=8.2-5.4
3.1x+x=8.2怎么解
2x-8.2=1-0.3x
50+0.4x=0.50+0.4x=0.6x