x = a - is a vertical line, where a is any real number
x = -5 - the vertical line passes through any points in the form (-5, y). Where y is any real number.
Look at the picture.
Use The Law of Cosines to calculate the unknown side.
Step-by-step explanation:
There are 3 times of -x
which means the total of those x
=

Answer:
5
Step-by-step explanation:
24x-40=8x+40
plus 40
24x=8x+80
then u subtract 8
then u get 16x
then 80 divied by 16
u get 5