John M. answered 02/16/18
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In this case, you don't need to know Royal's age. You simply need a way to represent it, using a variable.
Let's let the variable r = Royal's age and m = Malaysia's age.
Malaysia's aga is 4 years less than 2 times Royal's age. "2 times" means multiply by 2 and "4 less than" means subtract 4. So starting as Royal's age (r) we'd multiply by 2 (2r) then subtract 4 (2r - 4).
Therefore, m = 2r - 4