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    Anthony1995's Avatar
    Anthony1995 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 7, 2009, 05:23 PM
    Alebra1 questions (9th Grade)
    4x-5(3x+10)=126

    7x-2(3+4x)=19

    15+3(2x-9)=60

    28-6(2x+4)=124

    3(2x-1)+5=14

    3(7x+9)=-15

    15-(2x+7)=14
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member
    		  
    #2

    Oct 7, 2009, 05:39 PM
    4x-5(3x+10)=126

    4x - 15x - 50 = 126

    Can you solve it now?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Oct 7, 2009, 06:37 PM

    Perito:

    What am I going to do with you?

    -5 * 10 = -50

    Quote Originally Posted by Perito
    4x-5(3x+10)=126

    4x - 15x + 50 = 126 ; + should be -

    Can you solve it now?
    On the right hand side of ='s invokes a sign change

    Count the x's: 4 -15
    Count the #'s -50 -126

    (4-15)x + (-50 - 126) = 0
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #4

    Oct 8, 2009, 12:19 AM

    Perito is getting tired :rolleyes: That's the second one I see in the same week...
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