x-0.7x=2.4

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(X+X)+(X-X)+(X*X)+(X/X)=100

(X+X)+(X-X)+(X*X)+(X/X)=100(X+X)+(X-X)+(X*X)+(X/X)=1002X+0+X*X+1=1002X+X*X=99X(X+2)=99X=9因为(9+9)+(9-9)+(9×9)+(9÷9)=100,∴

x-0.7x=64.8求x

x-0.7x=64.8求x0.3X=64.8x=2162162160.3x=64.8x=216结果是`216`

1.8x-x=2.4x=?

1.8x-x=2.4x=?1.8x-x=2.40.8x=2.4x=3

x-0.7x=18

x-0.7x=180.3X=18X=60

x-0.7x=0.51

x-0.7x=0.511.7

x-0.7x=1.02

x-0.7x=1.02 

x-0.7x=1.

x-0.7x=1.0.3x=1.02x=3.4

x-0.7x=0.24.

x-0.7x=0.24.(1-0.7)x=0.240.3x=0.24x=0.24/0.3=0.8x-0.7x=0.240.3x=0.24x=0.8x-0.7x=0.240.3x=0.24x=0.80.3X=0.24X=0.24/0.3X=0

x-0.6x=0.7

x-0.6x=0.7x-0.6x=0.70.4x=0.7x=7/4x-0.6x=0.70.4x=0.7x=0.7/0.4=7/4X=7/4=1.754X-24=2X+202X=44X=222X(X-0.7)=4.82X2;-1.4X-4.8

x-0.7=15x

x-0.7=15x 

x-0.25x=2.4

x-0.25x=2.4x-0.25x=2.40.75x=2.4x=2.4÷0.75x=3.20.75X=2.4则x=2.4/0.75=3.20.75x=2.4x=2.4/0.75x=3.20.75x=2.4x=16/5x-0.25x=2.4

2.4x-x=2.1

2.4x-x=2.12.4x-x=2.11.4X=2.1X=1.5

2.4x-26=x

2.4x-26=x2.4x-26=x+22.4x-x=2+260.4x=28x=28/0.4x=702.4x-26=x2(2.4-2)x=260.4x=26x=26÷0.4x=65

1.8x-2.4=x

1.8x-2.4=x1.8x-2.4=x1.8x-x=2.40.8x=2.4x=3

1.8X-X=2.4

1.8X-X=2.41.8X-X=2.40.8X=2.4X=31.8X-X=2.40.8X=2.4X=31.8X-X=2.40.8X=2.4X=2.4÷0.8X=31.8X-X=2.40.8X=2.4X=3x=3-0.2x=2.4;x=-1

x-0.25x=2.4

x-0.25x=2.4(1-0.25)X=2.40.75X=2.4X=2.4/0.75X=3.2x-0.25x=2.4x(1-0.25)=2.40.75X=2.4x=2.4/0.75x=3.2化为0.75x=2.4x=2.4/0.75=3.

x-0.6x=2.4

x-0.6x=2.4 

x+2.4=1.05x

x+2.4=1.05xx+2.4=1.05x1.05X-X=2.40.05X=2.4X=481.05x-x=2.40.05x=2.4x=480.05x=2.4x=48

x*x*x*x*x=80000?

x*x*x*x*x=80000?计算器.真是太笨了!≈9.564如果在上课,教你个方法:带个智能手表,去TM老师管不着!我说,你怎么会考到这样的题呀……≈9.563524998x约等于9.5635

x*x*x=504 x*x*x=504

x*x*x=504x*x*x=504约等于7.95811441579