Asked by Isabella
                The sides of a rectangle have lengths x+9 and widths x-3. Write an equation that describes the perimeter, P, of the rectangle in terms of x.
I do not understand this problem, could someone please help me?
            
        I do not understand this problem, could someone please help me?
Answers
                    Answered by
            Reiny
            
    Perimeter = 2(width) + 2(length)
= 2(x-3) + 2(x+9)
= .....
expand, collect like terms and simplify
    
= 2(x-3) + 2(x+9)
= .....
expand, collect like terms and simplify
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