Negative thirteen decreased by 3 times a number A) 13 - 3x
B) -13 - 3x
C) -13 + 3x
D) 13 + 3x

C

Step-by-step explanation:

Let's assume the number is x.

Negative means a minus or subtraction.

Decrease also means a minus or subtraction.

Three times the number which we have assumed to be x will be: 3*x=3x

The

-13 - 3x

c: lkllmn.

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