National Testing Network (NTN) Firefighter Testing System (FireTEAM) Math Practice Test

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Subtracting what number from 30 gives 7?

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To solve the problem of what number needs to be subtracted from 30 to yield 7, the equation can be set up as follows:

30 - x = 7

Here, x is the number that needs to be subtracted from 30. To find x, rearranging the equation gives:

x = 30 - 7

Calculating this:

x = 23

Thus, subtracting 23 from 30 results in 7. This aligns perfectly with the operation required, confirming that the correct answer represents the necessary subtraction to achieve the desired result.

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