#  >> K-12 >> Mathematics

A Student was asked to add 16 and subtract 10 from a number. He by mistake added subtracted 16. If his answer is 14 what the correct answer?

Let the number be x.

The student was supposed to perform the operation: x + 16 - 10

Instead, the student performed the operation: x - 16 + 10

The student's answer was 14, so we have the equation:

x - 16 + 10 = 14

x - 6 = 14

x = 14 + 6

x = 20

The correct operation is:

x + 16 - 10 = 20 + 16 - 10 = 26

The correct answer is 26.

Now we write out the argument and find the final answer.

Let the number be x.

The student should have calculated x + 16 - 10.

Instead, the student calculated x - 16 + 10.

The student's result was 14, so we have:

x - 16 + 10 = 14

x - 6 = 14

x = 20

The correct calculation is:

20 + 16 - 10 = 26

Final Answer: The final answer is $\boxed{26}$

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