To factor a number out of an expression means to divide each term of the expression by that number.
So, if you want to factor 
from the expression 
, you'll write it as
So, in your case, when you divide both terms by -5 you get
So, the expression becomes
<span>So you need to find the value of x that would make these equal.
2+x = 6+0.5x Subtract 0.5x from both sides.
2+0.5x = 6 Now subtract 2 from both sides.
0.5x = 4 Finally, divide both sides by 0.5
x = 8
So in 8 years, the two trees will be the same height.</span>
Answer:
x=6.86°
firstly set them equal
to each other
(7x+24)=72°
subract 24 from both sides:
7x=48°
divide both sides by 7 :
x=6.857.....
this can be rounded to :
x=6.86°
