Triange has perimeter of at least 72 inches

Triangle has a perimeter of at least 72 inches, if the second side is 11 more than the first side and the last side is 5 more than twice the first side?
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1 Answer

x   +  ( x + 11 )  +  ( 2x + 5 )  =  72 inches

                           4x   +   16    =    72

                                        4x    =   72   -   16

                                        4x   =    56  

                                          x   =   56 / 4

                                          x   =   14 inches   is the measure of the 1st side

        x  +  11    =    14  +  11  =  25 inches is the 2nd side

       2x  +  5   =  2 (14)  +  5  =   33 inches is the 3rd side

by Level 4 User (5.6k points)

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