Question

Please Help!!!

Without solving, determine whether the solution of 1/3x = 21 is greater than or less than 21. EXPLAIN.

Answer 1

So, 1/3 of something is 21.

1/3 of x is not the full x: we know that the x is 21 and even more. So, it must be bigger than 21, since it has 21 and something else (and since 21 is not negative): the solution MUST be greater than 21.