笔算.45+5.96= 51.3﹣28.24=
3x=5(32-x)0.36×5-x=
2(x-2)+2=x+13-x=2-5(x-1)
8-x=3-x=
2x+3x=3.153.4x=8.6-1.8
2(200-15x)=70+25x3(2x+1)=12