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It's a bit hard to understand your question; I assume you mean a quarter of the difference between a number and 7. Let's call that number x, then the algebraic expression is

1/4 |x - 7|

Where the | symbols represent the absolute value or modulus of the expression between them, which always gives you a positive number. Imagine the 1/4 is written with the 1 over 4 like it would usually be. For x = 3, you get 1.

Otherwise if you want to allow negatives, you can say

1/4 (x - 7)

which for x = 3 gives you -1.

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13y ago
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Q: How do you write one over four the difference of a number and seven in an algebraic expression?
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