Simplify (7x) - (-2x).
5x
-5x
o9x
0-9x

Hello!

Your answer is: 9x

because you are subtracting a negative, invert the symbols

(7x) + (2x)

then just combine the like terms to get 9x

I hope this helps, and have a nice day!

16 km due west

Step-by-step explanation:

The bearing of the school p from school q is 16 km due west.

To find the bearing of school q from school p, we have to find the direction that the school q is with respect to school p.

Since p is directly west of q, then it implies that q must be directly east of p.

We now know the direction.

Since the distance from q to p is exactly the same as the distance from p to q, then, the distance from p to q is 16 km.

Hence, the bearing of q from p is 16 km due west.