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Let x be Max's age.
2 years ago his age was (x-2) years.
Then from the condition, you have this equation
    (x-2) - 12 = 
.
Simplify and solve for x
    x - 14 = 
    2x - 2*14 = x
    2x - x = 28
     x     = 28.
ANSWER.  Max's current age is 28 years.
Solved.