+44=58+20

+44=58+20 720-20×6+58= 14 22 () 44 58 简单的百分数计算:::::::::41/53 =12/53 =15/72 =20/72 =10/72 =27/72 =44/56 =6/56 =37/52 =14/52 =1/52 =42/58 =11/58 =5/58 =10/57 =4/57 =43/57 =13/52 =21/52 =18/52 =40/52 =8/52 =4/52 =8/58 =6/58 =44/58 =4/50 =28/50 =18/50 = 44度20分除以6=? (44-x)(20+5x)=1600 58-55×22+55556×54+22+36×44÷12=? 斜齿轮z1=19,z2=58,法面模数Mn=44,法面压力角an=20,直齿轮z3=17,z4=63,模数m=44,压力角a=20.问,为了满足中心距的要求,失球斜齿轮的螺旋角B X-20%X=(44-X)怎么解X-20%X=(44-X)+2.8 1：约分.24分之16= 35分之20= 27分之18= 24分之18= 72分之54= 75分之3= 84分之6= 42分之24= 77分之42= 44分之38= 39分之13= 58分之29= 36分之4= 85分之5= 56分之14= 简便运算：888*58*-444*16+44 58*44*32.5XCM等于多少平方米? 12分之+58分之7—20分之9= 16*(58+x)=1748-20解方程 6x-20%x=58的方程怎样算? 数学题丫丫丫丫丫56+x-(x2-20)=58 X等于? x+y=20 5x-2y=58x+y=205x-2y=58 （44-X）（20+5X）=1600