Please answer this Math question

Mathematics
Tutor: None Selected Time limit: 1 Day

The sides of a triangle have lengths 3, 5, and 7. In a similar triangle, the shortest side has length x-3, and the longest side has length x+5. Find the value of x.

Oct 27th, 2015

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if two triangles are similar,their corresponding sides are propotional

corresponding side of 3 is x-3 and corresponding side of 7 has length x+5

                     so,   3/(x-3)= 7 /(x+5)

cross multiplying,  3(x+5) =7(x-3)

                              3x+15 = 7x -21

                              15+21 = 7x-3x

                                     36=4x

                                      x = 36/4

                                       x=9...............................ANSWER


ANSWER IS 

value of x = 9


hope you understood..please message if you have any doubts...thank youhope you understood..please message if you have any doubts...thank you
Oct 27th, 2015

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