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'Reaction Rates' printed from https://nrich.maths.org/
Starting with concrete examples is a good way to get into this
problem.
To get a feel for the rate equation and how to solve it, think of a
function and evaluate both sides of the equation. If they are the
same for a particular choice of $m$ then you have found a solution
(well done!). If not, how might you adjust the function to turn it
into a solution?