Answer:

Remove backets

Group and Evaluate like terms





Answer:
n = - 12
Step-by-step explanation:
n/9 + 2/3 = - 2/3
n/9 = - 2/3 - 2/3
n/9 = - 4/3
n = 9(- 4/3)
n = -36/3
n = - 12
True.
The vectors are -25 in the left direction and;
-52 in the left direction
So they lie on the same line.
The answers should be:
A) 6n-4
B) -4n+25