Answer:
The answer is 19200
Step-by-step explanation:
120x80=9600×2=19200
Step-by-step explanation:

First we distribute

into

and

.


That makes the left side of the equation

Now we subtract

from

, which makes

Now the equation is

Our goal is to isolate

, so we both sides by 30
That will make the equation

We multiply -1 on both sides of the equation:

Finally we simplify

, which makes
So the answer is
The answer is 6x+7x there is no answer without the value of c