解:
2(x+0.3)=1.6
2(x+0.3)÷2=1.6÷2
x+0.3=0.8
x+0.3-0.3=0.8-0.3
x=0.5
2(x+0.3)=1.6
2x+0.6 =1.6
2x=1.6-0.6
x =1÷2
x =0.5
图
2 (x+0.3) =1.6
x+0.3= 1.6/2=0.8
x=0.8-0.3=0.5
2(x+0.3)=1.6
解:2·x+2·0.3=1.6
2x+0.6=1.6
2x=1
x=0.5