9x - (5x + 1) - {2 + 8x - (7x - 5)} + 13x = 0?

Respuesta : <img src="https://tex.z-dn.net/?f=x%3D-%5Cfrac%7B1%7D%7B9%7D" />Explicación paso a paso : <img src="https://tex.z-dn.net/?f=9x-%285x%2B1%29-%7B2%2B8x-%287x-5%29%7D%2B13x%3D0%5C%5C%5C%5C%5Cmathrm%7BAgrupar%5C%3Aterminos%5C%3Asemejantes%7D%5C%5C%5C%5C9x%2B8x%2B13x-%5Cleft%285x%2B1%5Cright%29-%5Cleft%287x-5%5Cright%29-2%3D0%5C%5C%5C%5C30x-%5Cleft%285x%2B1%5Cright%29-%5Cleft%287x-5%5Cright%29-2%3D0%5C%5C%5C%5C30x-%5Cleft%285x%2B1%5Cright%29-%5Cleft%287x-5%5Cright%29%3D2%5C%5C%5C%5C%5Cmathrm%7BDesarrollar%5C%3A%7D30x-%5Cleft%285x%2B1%5Cright%29-%5Cleft%287x-5%5Cright%29%3A%5Cquad%2018x%2B4%5C%5C%5C%5C18x%2B4%3D2%5C%5C%5C%5C18x%3D-2%5C%5C%5C%5Cx%3D-%5Cfrac%7B1%7D%7B9%7D" />.