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Answer:

5-x

Step-by-step explanation:

5-x

when it says than you have to switch it

The equation should be x - 5.

Given information:

the sum of 1 and x is less than 5

The equation should be:

When 1 and x should be less than 5 so, the equation is x - 5.

The sum formula should be used when we have to add something. It is basically adding the numbers to get the result.

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