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
ANSWER
The correct answer is D.
EXPLANATION
If we express the monomial,
as product of primes, we obtain:
If we express the monomial
as product of primes we obtain:
The least common multiple of these two binomials is the product of the highest powers of the common factors.
The LCM is
Therefore the correct answer is D.