Simon says “Five times my age four years ago is the same as 3 times my age in two years” How old is Simon?

Question

i don’t know how to describe it 

Answer 1

Let A = Simon's age now

5(A-4) = Five times Simon's age 4 yrs ago

3(A+2) = 3 times Simon's age in 2 years

5(A-4) = 3(A+2)

5A - 20 = 3A + 6

2A = 26

A = 13

Check the answer against the original problem.