(2x-7)/25=(4x-13)/75
5个回答
3(2x-7)=4x-13
6x-21=4x-13
2x=8
x=4
相关问题
(2x-7)/25=(4x-13)/75
(1)75%x+25%x=6 (2)4x+20%x=13.86 (3)60%x-35%x=75 (4)x:15=6:3
x+[3/7]x=18 x×( [1/6]+[3/8])=[13/12] [x/2]=[0.75/1.25],
25:7=x:35 7.5:x=3.75:4 [2/3]:[5/6]=x:9.
3又2分之1÷4+360x25%+0.25x36.5=? (7.25x40%+2.75x2/5)÷
解方程 2 3 x+ 1 2 x=63 7x-25=13.5 1.2 7.5 = 0.4 x .
25x16x25x84=?78+22x7=?39x102=?104x25=?{25x13}x4=?
14X3/7+0.65X8/13-2/7X14+5/13X0.65 138X1又3/4+23.3X(2-百分之75)-百
解方程x+0.25x=13.75怎么写
16x+27=13x-1557+4x-2x+4=6934x-7=37+23x3x+25=7x-1567+x-3x+4=6