Question

hallar x . ayudaaaaaaaaaaAa

Answer 1

Respuesta:

x = 15°

Explicación paso a paso:

$4x + {180}^{o} - 9x + {180}^{o} - 7x = {180}^{o} \\ {360}^{o} - 12x = {180}^{o} \\ {360}^{o} - {180}^{o} = 12x \\ {18 0 }^{o} = 12x \\ \frac{ {180}^{o} }{12} = x \\ {15}^{o} = x$