Respuesta :

An angle on a straight line is 180 degrees

 ⇒ this angel is made up of two angles with measures

   ⇒ 'x-7' and '57'

     ⇒ when these two angles are added up they are equal to the larger

          angle that is 180 degrees in measure

Let's set up a mathematical equation based on the information and deduction:

  [tex](x-7)+57=180\\x-7+57 = 180\\x + 50=180\\x = 130[/tex]

Answer: The value of x is 130

Hope that helps!