Find out n of these equations:
4n + 10 = 18
4n - 13 = 23
10n + 8 = 78
2 answers:
4n+10=18 4n-13=23 10n+8=78
4n+10-10=18-10 4n-13+13=23+13 10n+8-8=78-8
4n=8 4n=36 10n=70
n=2 n=9 n=7
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