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maths

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i have got to find the perimeter of a triangle that has one side of 8x-7w another that says 3x+9y and then another that says 3y+5w

whats the perimeter of the triangle ??? please help

  • maths -

    P = a + b + c
    add the three sides

    P = 8x - 7w + 3x + 9y + 3y + 5w
    combine like terms

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