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    solve for x:
    |5x+a|<=|2x| where a>0
    That's a less than equal to sign, can't find the button here for it, sorry!


    I did:
    5x+a<= 2x
    x<= -a/3

    -5-a>= 2x
    x<= -a/7

    But the answer is wrong!
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    (Original post by 123PC)
    solve for x:
    |5x+a|<=|2x| where a>0
    That's a less than equal to sign, can't find the button here for it, sorry!


    I did:
    5x+a<= 2x
    x<= -a/3

    -5-a>= 2x
    x<= -a/7

    But the answer is wrong!
    I will start by sketching the 2 graphs
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    (Original post by TeeEm)
    I will start by sketching the 2 graphs
    But can it be done algebraically, with out graphs?
    The answer worked out when I sketched the graphs.
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    (Original post by 123PC)
    But can it be done algebraically, with out graphs?
    The answer worked out when I sketched the graphs.
    It can but this is way too advanced and messy, so it is not worth it
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    (Original post by TeeEm)
    It can but this is way too advanced and messy, so it is not worth it
    Okay, thank you!
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    (Original post by 123PC)
    Okay, thank you!
    no worries
 
 
 
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