Respuesta :

DᴀʀᴋPᴀʀᴀᴅᴏx

[tex]\large \mathfrak{Solution : }[/tex]

As we know, sum of interior angles of a triangle measures 180°

let's solve for value of x :

  • [tex]x \degree+ (x - 17)\degree + (3x - 3)\degree = 180\degree[/tex]

  • [tex](x + x + 3x)\degree + ( - 17\degree - 3\degree) = 180\degree[/tex]

  • [tex]5x\degree - 20\degree = 180\degree[/tex]

  • [tex]5x \degree= 180\degree + 20\degree[/tex]

  • [tex]x\degree = \dfrac{200\degree}{5\degree} [/tex]

  • [tex]x\degree = 40\degree[/tex]

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