2X+5.2=8-1.8
问题描述:
2X+5.2=8-1.8
答
2x+5.2=6.2
2x=1
x=0.5
答
2X+5.2=8-1.8
2X+5.2=6.2
2X+5.2-5.2=6.2-5.2
2X=1
2X/2=1/2
X=1/2=0.5
答
2X+5.2=8-1.8
2X=8-1.8-5.2
2X=1
X=1/2