Respuesta :
3(d + 11) = 6(d + 33)
3d + 33 = 6d + 198
3d - 6d = 198 - 33
-3d = 165
d = - 165/3
d = - 55
this equation has 1 solution
3d + 33 = 6d + 198
3d - 6d = 198 - 33
-3d = 165
d = - 165/3
d = - 55
this equation has 1 solution