How old am i if 400 reduced by 2 times my age is 244

The answer should be 48,800 because 400 divided by 2 x 244 = 48800.

400 - 2*Age = 244 <<

-2 * Age = - 156

So our age = 78 years, months, days, hours since there were no actual units supplied.

400 - 2x = 244

-2x = 244 - 400

-2x = - 156

x = - 156/-2

A better example above as above was just a simplified version.