2X+5.2=8-1.8
问题描述:
2X+5.2=8-1.8
答
2X+5.2=8-1.8
2X=8-1.8-5.2
2X=1
X=1/2
2X+5.2=8-1.8
2X+5.2=8-1.8
2X=8-1.8-5.2
2X=1
X=1/2