When you are being tailgated by another person, it is best to SLOW DOWN so the person is able to safely pass you without having to worry about getting hit by other cars from the left or right.
Answer:
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Answer:
n=-1
Step-by-step explanation:
distribute the 7 to n+4 to get 7n + 28 = 21. subtract 28 from both sides to get 7n = -7. divide both sides by 7 to get n=-1
you could also divide everything by 7 at the beginning to get n+4=3, then subtract 4 from both sides to get n=-1