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n - 8 is the expression for the difference of eight and a number.'Number' is a variable, so the variable must be a letter (in this case, 'n'). 'The difference' is going to be the subtraction symbol that is in between the 'number' and eight, so it must be n - 8.
It could, of course, be 8 - n.
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Continue Learning about Other Math
What is the difference between an expression and a numerical expression?
it has to have an x number in it.
What is the algebraic expression for 8 more than half a number?
The algebraic expression for "8 more than half a number" can be represented as ( \frac{x}{2} + 8 ), where ( x ) represents the unknown number. This expression first calculates half of the number by dividing it by 2, then adds 8 to the result.
What is an algebraic expression for the quotient of a number and 8?
x/8
What is a number b divided by 8?
The expression is: b/8
What is the expression of a number divided by 8?
4
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