题目内容
求未知数x.
| 13x-11x=27.1 | 50%x=60 | 3x÷6=36. |
①13x-11x=27.1,
2x=27.1,
2x÷2=27.1÷2,
x=13.55;
②50%x=60,
0.5x=60,
0.5x÷0.5=60÷0.5,
x=120;
③3x÷6=36.
3x÷6×6=36×6,
3x=216,
3x÷3=216÷3,
x=72;
2x=27.1,
2x÷2=27.1÷2,
x=13.55;
②50%x=60,
0.5x=60,
0.5x÷0.5=60÷0.5,
x=120;
③3x÷6=36.
3x÷6×6=36×6,
3x=216,
3x÷3=216÷3,
x=72;
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