Question

解方程. 160*25%-1.3x=17.9 0.8*(x-0.2)=1 2%x*15+1\2=11 x\5-x\6=0？

Answer 1

160*25%-1.3x=17.9 0.8*(x-0.2)=1 2%x*15+12=11
1.3x=160*25%-17.9 x-0.2=1/0.8 2%x*15=11-12
1.3x=22.1 x-0.2=1.25 2%x*15=10.5
x=17 x=1.45 2%x=0.7
x=35
x5-x6=0.4 0.3.5=x+12x-1
6x/30-5x/30=0.4 0.6=2/2x+1/2x-1
(6x-5x)/30=0.4 (2+1)/2x=1+0.6
x=0.4*30 0.5x=1.6
x=12 x=3.2,1,不知道的,1,1...,1,160乘25%-1.3x=17.9 0.8乘(x-0.2)=1 2%x乘15+12=11 1.3x=160乘25%-17.9 x-0.2=1/0.8 2%x乘15=11-12 1.3x=22.1 x-0.2=1.25 2%x乘15=10.5 x=17 x=1.45 2%x=0.7 x=35 x5-x6=0.4 0.3.5=x+12x-1 6x/30-5x/30=0.4 0,0,解方程. 160*25%-1.3x=17.9 0.8*(x-0.2)=1 2%x*15+12=11 x5-x6=0.4 3(x+2)=4(x+1) 0.3.5=x+12x-...
解方程. 160*25%-1.3x=17.9 0.8*(x-0.2)=1 2%x*15+12=11 x5-x6=0.4 3(x+2)=4(x+1) 0.3.5=x+12x-1 快!要过程!要详细!