0.45:0.3= 0.25:7/8= 1.2:2=
解方程(5道题) 6x+4.5=9x-1.2 0.25a-0.45=0.2a 0.7m-3=0.3m+0.2 5(x-4
4分之0.3 = 32分之() 2:0.5=1.2:() 8分之7 :( )=2分之1:
42:0.3=x:0.45
24÷1.5-8.4×0.25 1+0.45÷0.9-8分之7 (5分之4-3分之2)X=12 0.4X+4×1.7=1
Matlab拟合x=[0,0.05,0.1,0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.
解一:0.25\2x+1-0.3\0.2(x-2)=1 二:0.03/0.1x-0.3=0.2/2x+1=1.2
1.8-8x/1.2-1.2-3x/2-5x-0.6/0.3=2.9
0.3x-x*0.25=21.15-7x
0.3x+7x-0.25x+=21.15
0.3x-x乘以0.25=21.15-7x
解方程 0.3x+7x-0.25x=21.25
0.3x+7x-0.25x=21.15