n - 10 + 9n - 3
n + 9n - 10 - 3
10n - 13
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n-10+(9n-3)=10n-13
If it is: 13m+5n-6m+9n Then simplified it is: 7m+14n
9n + n = 10n
11m + 6n - 2m + 9n = 9m + 15n or 3(3m + 5n)
You need to get n alone.9n=45 → Divide by 9n=45/9n=5