Make up and write down four differences in each of which the subtracted by 7 is more than the subtracted.

In the condition of the problem it is said that the reduced must be seven more than the subtracted, then the difference must be equal to seven, that is, the expressions must be composed as follows: Reduced-Subtracted = 7. Such differences can be:
1.30-23 = 7;
2.14-7 = 7;
3.8-1 = 7;
4.100-93 = 7.

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