The answer is n = 5.
5n + 7 = -41 5n = -48 n = -48/5 n = -9.6
n - 6m = 8 n = 6m + 8
Answern=13-7x8=48
You can either do this by trial-and error, or solve the equation n + (n + 2) + (n + 4) = 48.
N=l-m
54 / 9 = n n = 6
(n-2)x180
n = 6
If n + 7 = 12, then n = 12 - 7
38+n=57 n=57-38 n=19
-18