Respuesta :

Answer: oh no I got a disease

Step-by-step explanation: walking round to ur neighborhood

Answer:

Step-by-step explanation

7. Let's simplify step-by-step.

3+5x−4−7x                                 .

−x−4x−7

=−x+−4x+−7

Combine Like Terms:

=−x+−4x+−7

=(−x+−4x)+(−7)

=−5x+−7

8. Let's simplify step-by-step

=3+5x+−4+−7x

Combine Like Terms:

=3+5x+−4+−7x

=(5x+−7x)+(3+−4)

=−2x + −1

9.   −(−x+3)

     =x−3