7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)
2 answers:
Answer :
m = 13.4/4.65
Step by step :
7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)
7.8 + 2.75m + 0.8 = -6.4m + 4.5m - 4.8
2.75m + 6.4m - 4.5m = -7.8 - 0.8 - 4.8
4.65m = 13.4
m = 13.4/4.65
Answer:
B
Step-by-step explanation:
She is incorrect because when substituting 2 for m the result was a false statement.
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