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marmar

  • 4 years ago

HELP!!!!! PICTURE ADDED

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  1. marmar
    • 4 years ago
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  2. Avva
    • 4 years ago
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    the perimeter of a triangle equals the summation of it sides ,, right??

  3. Avva
    • 4 years ago
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    so all what will you do is that : (5x-7) + (4x-4) + (13-x ) = 38 and you can calculate the value of x :D

  4. marmar
    • 4 years ago
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    I dont know how to do that

  5. marmar
    • 4 years ago
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    nvm got it

  6. Avva
    • 4 years ago
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    you will add like terms (5x+4x-x) + (-7-4+13) = 38 8x + 2 = 38 8x = 38 - 2 8x =36 x = 36/8 x = 4.5 you got it now??

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