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    samstopp's Avatar
    samstopp Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 3, 2014, 06:19 PM
    Easy Math Question
    - (-m) for m = 12
    Evaluate this expression
    I am a bit confused by this but I got the answer of just 12. Am I right?
    I know this is extremely easy question
    pready's Avatar
    pready Posts: 3,197, Reputation: 207
    Ultra Member
    		  
    #2

    Sep 3, 2014, 07:54 PM
    If m = 12, then -m = -12. Now a -(-) means a negative 1 times negative 1. A negative number times a negative number equals a positive number. So -(-12) equals -1 times -12 which equals 12.
    teacherjenn4's Avatar
    teacherjenn4 Posts: 4,005, Reputation: 468
    Education Expert
    		  
    #3

    Sep 3, 2014, 08:15 PM
    You're correct. Glad to see you tried instead of just asking for help.
    Wondergirl's Avatar
    Wondergirl Posts: 39,354, Reputation: 5431
    Jobs & Parenting Expert
    		  
    #4

    Sep 3, 2014, 08:33 PM
    TJ, pready showed the OP how to work it out.
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