Michel is twice as old as his sister sylvia. In four years three times Micheal's age is equvialent to five times of sylvia's age. How old is Micheal now

Answer 1

perhaps it means (although the statement is ambiguous)
3(2 s + 4) = 5(s+4)
6 s +12 = 5 s + 20
s = 8
m = 2 s = 16