14+[0.8*0.375+(10.5-[])*3]/0.3=100 []=( )
14+[0.8*0.375+(10.5-[])*3]/0.3=100 []=( )
14加[0.8乘以0.375加(10.5减三角形)乘以3]除以0.3=100
14+[0.8×0.375+(10.5-?)×3]÷0.3=100 问号处填什么
14+[0.8×0.375+(10.5-◎)×3]/0.3=100 ◎=?
0.():24=0.8:0.3=0.3\()
3/( )=0.375=24/()=21/( )
0.3:2X=1:650—X/4=0.8:1/249:(10—X)=14:21/15:1/5=1/X:1/3
( ):40=几分之3=0.375=( )%
若10.5x-10=36-3y=14+A,则x=( ),y=( )
求未知数x.(1)(4.5-x)×7=17.5(2)5.5x-1.3x=12.6(3)0.8x+0.5×13=10.5(
0.375=3÷()=40分之()=():24=24:()
3/()=()/24=24\()=0.375=()%