How do I solve -6n+3n=-18
2 answers:
You add the alike variables first so -6n + 3n = -3n
then the equation is -3n=-18
Now divide each side by -3 to get the n by itself
-3n -18
--- = ------
-3 -3
n=6
First simplify. Combine like terms
-6n + 3n = -3n
-3n = -18
Isolate the n, divide -3 from both sides
-3n/-3 = -18/-3
n = -18/-3
n = 6 (remember, in dividing two negative numbers, the answer will be positive).
6 is your answer
hope this helps
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