Final answer:
The phrase '65 decreased by twice a number' translates to the algebraic expression 65 - 2x. This can be used in mathematical problems to find specific values once x is known.
Step-by-step explanation:
The question 65 decreased by twice a number is a phrase that can be translated into a simple algebraic expression. If we use the variable x to represent 'a number,' then 'twice a number' is represented as 2x. Therefore, '65 decreased by twice a number' can be written as the expression 65 - 2x.
This expression can be used in various mathematical problems. For example, if you are given a specific value for x, you can substitute that value into the expression and simplify it to find the result. If x is 5, then the expression becomes 65 - 2(5) = 65 - 10 = 55, so the result would be 55.