20/(X+3)=1.6
问题描述:
20/(X+3)=1.6
答
20/(X+3)=1.6
X+3=20/1.6
X+3=12.5
X=9.5
20/(X+3)=1.6
20/(X+3)=1.6
X+3=20/1.6
X+3=12.5
X=9.5