Respuesta :

maeterence1234

Answer:

−9d+13

Step-by-step explanation:

3d+4−(6d−9)

Distribute the Negative Sign:

=−3d+4+−1(6d−9)

=−3d+4+−1(6d)+(−1)(−9)

=−3d+4+−6d+9

Combine Like Terms:

=−3d+4+−6d+9

=(−3d+−6d)+(4+9)

=−9d+13

Answer:

=−9d+13