0.4(x-0.2)+1.5=0.7x-0.38
0.4(x-0.2)+1.5=0.7x-0.38
0.4(x-0.2)+1.5=0.7x-0.38 (0.6x+420)÷(x+20)=3
解方程:0.4(x-0.2)+1.5=0.7x-0.
0.2x+0.4x=12 x=?20x+x=420 x=?
0.4(x-0.2)+1.5=0.7x-0.38解方程怎么解求帮忙
0.4(x-0.2)+1.5=0.7x-0.38(用方程解)
解方程:2- x+5/6=x- x-1/3,0.1-0.2x/0.03-1=0.7-x/0.4
已知方程0.4(x-0.2)+m=0.7x-0.38的解x=6,求m等于多少?
0.4(x-0.2)+15=1.7x-0.38方程
0.7x+1.37=1.5x-0.23 x=?
解方程:x/0.7-1.5-2x/0.2=1
0.7分之X-0.2分之1.5-2X=1