Respuesta :

Answer:

10 - 3x

Step-by-step explanation:

Decreased = Subtraction

                               -

10 DECREASED by 3x, is

10 SUBTRACTED by 3x, is

10 - 3x

The correct expression for 10 decreased by 3x is 10 - 3x

The term decrease in the question means to subtract. The sign used to represent subtraction is -. Subtraction is one of the four basic mathematical operations. The other basic mathematical operations are addition, multiplication and division.

To subtract means to remove a value from another value. For example, 10 decreased by 4, means ten subtracted from four or ten less less four. This can be presented with this expression: 10 - 4. 10 decreased by 3x can also be written as 10 - 3x.

To learn more about subtraction, please check: https://brainly.com/question/17781221?referrer=searchResults

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