An algebraic expression will normally include one or more variables that is represented by a letter or some non-numeric symbol.
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It is a poorly worded question. Any number in an expression can be a numerical variable.
It is the 2 terms of an algebraic expression in the form of 3x-39
The answer will depend on the specifics of the question. In general terms, all that can be said is for all the "like" x terms to be summed and then for the resulting expression to be factorised - if possible. There are also numerical methods. But, the question needs to be more specific.The answer will depend on the specifics of the question. In general terms, all that can be said is for all the "like" x terms to be summed and then for the resulting expression to be factorised - if possible. There are also numerical methods. But, the question needs to be more specific.The answer will depend on the specifics of the question. In general terms, all that can be said is for all the "like" x terms to be summed and then for the resulting expression to be factorised - if possible. There are also numerical methods. But, the question needs to be more specific.The answer will depend on the specifics of the question. In general terms, all that can be said is for all the "like" x terms to be summed and then for the resulting expression to be factorised - if possible. There are also numerical methods. But, the question needs to be more specific.
k-2.5 An algebraic expression is just using variables (in this case, k) for unknown numbers. Since the question is asking what the number k minus 2.5 is, your answer is k-2.5.