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MArishka [77]
3 years ago
9

Find out n of these equations: 4n + 10 = 18 4n - 13 = 23 10n + 8 = 78

Mathematics
2 answers:
vladimir2022 [97]3 years ago
6 0
A)
N = 2
b)
N = 9
C)
N = 7
Kryger [21]3 years ago
4 0
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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