Respuesta :
7x + 8x = 105
7x + 8x = 15x
15x = 105
15x = 105
Divide each side by '15'.
x = 7
Simplifying
x = 7
7x + 8x = 15x
15x = 105
15x = 105
Divide each side by '15'.
x = 7
Simplifying
x = 7