Could someone explain 21 = -7n please?
1 answer:
Answer:
n = -3
Step-by-step explanation:
The question is asking you to solve for your variable N. To do so, you must use difference operation(s) and their respective principle of equality to isolate the variable.
To get n by itself on one side of the variable, the term -7n by -7. What you do to one side of the equal sign, you must also do to the other due to the division principle of equality. Thus, you also divide 21 by -7.
Once you simplify, you are left with -3 = n or n = -3, which is your answer.
You might be interested in
Given :
Casey's company charges , C = $300.
In summer special, Casey offers customers a trade discount of 25%.
To Find :
Charges during summer.
Solution :
Let, x is the amount of charges they take during summer.
Casey offers customers a trade discount of 25%.
Therefore, amount of charges during summers are $225.
Hence, this is the required solution.