3x(1/2—5/6—3/4+7/12)x8
3x(1/2—5/6—3/4+7/12)x8
1X8+1=9,12X8+2=98,123x8+3=987,1234x8+4=9876找规律把下面,□填上数字
1x8+1=9,12x8+2=98,123x8+3=987,1234x8+4=9876照样子继续
(-1/12)x8/15x(-2/3)x(-9/4)怎么计算呀
(5x—12)x8=24解方程
(5x一12)x8=24 (100-3x)÷2=8
解方程5到要过程的.2x+4*0.7=6又2分之14分之3:x=12.5:0.50.9:=7又2分之1:x8.3-7x=
1x8+1=9 12x8+2=98 123x8+3=987 这三个算式有什么规律?
1x8+1=9 12x8+2=98 123x8+3=987 这三个算式有什么规律
简算3/4x[(7/15-1/5)/2/3].(58+27)x8+19/27.9.56-4.875-1/8+1.44
2x2/1x3+4x4/3x5+6x6/5x7+8x8/7x9+10x10/9x11+12x12/11x13 仔细看看
某同学做一道数学题:当x=-1时,求10x9+9x8+8x7+7x6+6x5+5x4+4x3+3x2+2x+1的值,由于