60(30x)=40x+20(30+x)+1200
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/18 02:54:12
xJ0_e),97SQw7Oo*|1m\QXv&k] @kOR@/t-
^yDg--k{29wU||W|r]5sA5cL4O&M6Fo&:n]1ڒr?vph
3?h8k1 jjm%RYTxTTE..)SD;B)]}ߟ|~g
60(30x)=40x+20(30+x)+1200
60(30x)=40x+20(30+x)+1200
60(30x)=40x+20(30+x)+1200
1800x=40x+600+20x+1200
1800x-60x=1800
1200x=1800
x=1.5
60(30x)=40x+20(30+x)+1200
60x(x-4)=30x
X-30%X+8-X=20
30%x=50%x-20x
(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x
(x+30)*(x-18)=x*x
20%x+20%x×30%x-20%x=4.5
X/(x-30)=(x+40)/X解方程,
x-30%x-30%x-20=40 如何解,
x-60%x-25%x=25%x-30
50%x+x=20 x+30%x=52
x-30%x=14x+25%x=20
x/6+x/12+x/20+x/30=1
(30-x):(18+x)=(20+x):(32-x)
x+(30-x)=60
40X=60(30-X)
40%x+21=37x-78%x=2.2x+30%x=26(1-25%)x=1540%x-30=152x+20%x=3.3怎么列式计算jijiji40%x+21=37x-78%x=2.2x+30%x=26(1-25%)x=1540%x-30=152x+20%x=3.3
(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)....