2.7-0.5x=2.
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2.7-0.5x=2.
2.7-0.5x=2.
2.7-0.5x=2.
2.7 - 0.5x = 2.3
-0.5 x = 2.3 - 2.7
-0.5 x = -0.4
x = 0.8
2.7-0.5x=2.
一些带有两个x的方程,x+3.5x=9.94.25x-x=4.5510x-2.7x=58.46.8x+3.2x=1007x+0.5x=1.5
20.5x =x-2.还有2+0.5x=x-2.4
8x-5.5x=7.57.2x÷3.6=2 3x+6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x+x=1.8 3.2x+1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x+6x=4.5 18x-12x=5.42x-1.6x=3.6 18x+3x=7×6 1.2x-0.5x=0.71.3x+2.7x=1 4x-3.2x=6.4 0.8x+3.2x+3x=562.8x-2x=7.2
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=
X+0.8X=2.7
(1)3.5x+x-14=18.4 (2)2.7*2-1.5x=0 (3)13x-6.8x+x=46.8 (4)17.5-0.5x=12.7 (5)5x-1.4x=54
1.(x+0.5y)(x-0.5y)(x平方-0.25y平方)2.(x+0.5)平方-(x-0.5)(x+0.5)=0.5
X+0.5X=3 X-0.8X=8
求x:|x|-|x-4|=0.5x-1
x+0.5x=30
X=12.8+0.5X
x-0.5x=20,
0.5X=X-9