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ivolga24 [154]
3 years ago
8

7(m-12)=5m a) -7 b) 6 c) 42 d) -42

Mathematics
2 answers:
Darya [45]3 years ago
3 0
7(m-12)=5m \\ \\ 7m - 84 = 5m \\ \\ -84 = 5m - 7m \\ \\ -84 = -2m \\ \\  \frac{-84}{-2} = m \\ \\  \frac{84}{2} = m \\ \\ 42 = m \\ \\ m = 42 \\ \\ Answer: \fbox {m = 42}
Anna [14]3 years ago
3 0
7(m-12) = 5m

7m - 84 = 5m

2m - 84 = 0

2m = 84

m = 42

The answer is C) 42
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