What is a short method to show the compound inequality x < 2 and x > 7

These inequalities are not compatible: you are looking for a number that is less than 2, but more than 7. This is impossible, because if a number is less than 2, it can't be more than 7.

Conversely, if a number is more than 7, it can't be less than 2.

the answer is y = 11.54

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