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The expression 9n + 1 represents the perimeter (in meters) of
the triangle. Write an expression in simplest form that represents the measure of the third side.

The expression 9n 1 represents the perimeter in meters of the triangle Write an expression in simplest form that represents the measure of the third side class=

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Answer:

The expression 9n + 1 represents the perimeter

sum of the sides of the triangle, equal to the perimeter:    

                                                                          x +  3n+2 + 2n-1 = 9n + 1

                                                                                    x +  5n + 1 = 9n + 1

                                                                                                   x = 9n +1 - 5n -1

                                                                      Answer:                x= 4n

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