I need more help I dont understand these letters and numbers

Answer:
Width also known as (W) = 1.5 meters
Area also known as (A) = 6 square meters
Length also known as (L) = ?
the formula to find Length is:
Step-by-step explanation:
[tex]L=\frac{A}{W}[/tex]
[tex]L = \frac{6}{1.5}[/tex]
[tex]L= 4 m[/tex]
Choice 3 is the answer
1.5x = 6
x=4
substitute 4 for the x
1.5(4)=6
1.5×4 = 6
so
6=6
so the answer is
1.5x=6
x=4
The answer would be 4.
If you multiply 1.5 by 4 you get 6.0 and it's the same to 6.