Respuesta :

[tex]5x - 47 + 9x - 11 = 180 (lenear \: pair) \\or, 14x - 47 = 180 \\or, 14x = 180 + 58 \\or, \: x = 338 \div 14 \\ or, \: x = 17 \\ so, \\ 5x - 47 \\ = 5 \times 17 - 47 \\ = 85 - 47 \\ = 38[/tex]