Translate the english phrase into an algebraic expression fifteen more than m

m + 15

Step-by-step explanation:

Start at the end and work backwards to the beginning of the sentence.  Most times these work like that.  I'll start with "m", then I know that 15 more than "m" is m + 15.  It would be the same thing to express that particular problem as 15 + m because addition is commutative.  But subtraction is not.

"15 less than m" is m - 15, wheras

"m less than 15" is 15 - m.  

This matters because if m = 10, for example, 10 - 15 = -5 where 15 - 10 = 5

5 and -5 are not the same answer.

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