30 days has September, April, June, and November
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30 days has September, April, June, and November
It means something is 30 degrees north latitude of the equator.
Just to get you straight, that is actually an expression. Equations have equal signs in them. Just so you know. Anyway, it just so happens that this expression (-6n - 30) is already simplified. There are no like terms to combine there, since 30 does not have an "n".
Call the number n. From the problem statement, (n/6) + 25 = n. Multiplying both sides by 6 yields n + 150 = 6n, or 150 = 5 n or n = 30.
10 - 2n = 30 10 - 2n + 10 = 30 + 10 2n = 40 2n/2 = 40/2 n = 20