用等式性质解方程练习1. 作业精灵老师示例:2. 4.8+ x=5.2 x-260=760 x=5.2-4.8 x=760+260 x=0.4 x=1020 x-2.73=7.27 x×1.6=32 x=7.27+2.73 x=32÷1.6 x=10 x=20 x÷8=150 4.5 x=36.9x=150×8 x=36.9÷4.5x=1200 x=8.23. 左表: x+7=36 29+y=35 x=36-7 y=35-29 x=29 y=6 右表:92-x=43 y-69=31x=92-43 y=69+31x=49 y=1004. x+5=32 |