20000(1+40%)=20000-x+(4x+2000) 怎么算?
问题描述:
20000(1+40%)=20000-x+(4x+2000) 怎么算?
答
20000-x+(4x+2000)=20000(1+40%)
x=2000
答
20000+20000*40%=40000+3x
8000=20000+3x
3x=-12000
x=-4000
答
20000(1+40%)=20000-x+(4x+2000)
20000*1.4=20000-x+4x+2000
3x=22000-28000
3x=-6000
x=-2000