The first thing we must do for this case is to define a variable.
We have then:
x: Age of Mark
Mark's age two years ago is given by:
[tex] x-2 [/tex]
We know that Mark's age is six times the age he was two years ago.
Therefore, the expression that models the problem is given by:
[tex] x = 6 (x-2) [/tex]
Answer:
The equation that models the problem is:
[tex] x = 6 (x-2) [/tex]
option 3
