exam Maths Puzzle Numerical Ability

Hello,

I am trying to translate: The sum of two numbers is fifteen. One less than three times the smaller is equal to the larger. Find the two numbers. Thanks.

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exam Other Question
Determine the domain and range of the function f(x) = 3 - x^2. given: f(x)=x-3 and g(x)=x-2 find f*g(x)


Thanks