题目内容
求未知数x
| x-52=148 | x×36=720 | 2100÷x=35. |
①x-52=148,
x-52+52=148+52,
x=200;
②x×36=720,
x×36÷36=720÷36,
x=20;
③2100÷x=35,
2100÷x×x=35×x,
2100=35x,
2100÷35=35x÷35,
x=60.
x-52+52=148+52,
x=200;
②x×36=720,
x×36÷36=720÷36,
x=20;
③2100÷x=35,
2100÷x×x=35×x,
2100=35x,
2100÷35=35x÷35,
x=60.
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