a teacher asks the student to take any odd number, multiply by 4, add 16, and divide results by 2. subtract 7 from quotient and tell the answer. the teacher said she will be able to tell the student the original number. how?
Stacey Warren - Expert brainly.com
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Let x = an odd number and y=answer. Then the equation you just described would look like this:
If I told the teacher that my answer was 7, she could work backwards and find my original number:
No matter what your answer will be she can use the second equation I wrote to find your original odd number.