46.5-X=27.4 移项-x=27.4-46.5-x=-19.1x=19.11.55除以X=0.5 两边同乘以x=>0.5x=1.55两边同除以0.5x=1.55÷0.5x=3.1
1.X=46.5-27.4=19.12.X=1.55/0.5=3.1
46.5-X=27.4 减数等于被减数-差x=19.11.55除以X=0.5除数等于被除数除以商x=3.1
1,x=46.5-27.4=19.12,x=1.55/0.5=3.1小家伙又不好好学习了吧!!