2(n+3)
two times the sum of a number (n) and 3
-15 is 15 below o
you are adding 4 , so you are getting closer to 0
so you would actually use subtraction, 15-4 = 11
since 15 is negative, and you are adding a number smaller than 15, the answer would be negative so it would be -11
Answer:
0.89
Step-by-step explanation:
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