Answer:
6
Step-by-step explanation:
w/w+6 = 1/2
2w = w+6
w=6
-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 to your question : 8 vans
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