Respuesta :
6f+9g=3g+f
-9g
6f + 9g - 9g = 3g - 9g +f
6f = -6g + f -f
6f - f = -6g + f -f
7 f = -6g /7
f = -6/7 g
hope that helps
6f + 9g - 9g = 3g - 9g +f
6f = -6g + f -f
6f - f = -6g + f -f
7 f = -6g /7
f = -6/7 g
hope that helps