0.6X=0.4X+50,x=多少?
问题描述:
0.6X=0.4X+50,x=多少?
答
0.6X=0.4X+50
0.6x-0.4x=50
0.2x=50
x=250
0.6X=0.4X+50,x=多少?
0.6X=0.4X+50
0.6x-0.4x=50
0.2x=50
x=250