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Solve the equation. 78 = -2 (m+3) + m
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ok distribute the -2 to the m + 3
first distribute the -2 so 78 = -2m + 6 + m. then combine like terms. so 78 = m + 6. then isolate the variableby subtracting 6 from both sides, thus m = 72
wouldnt it be -72?
you would get 78 = -2m - 6 + m
-2m + m = -m
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-39 = 2m + 3 -42 = 2m m = -21
A. –28 B. –42 C. –72 D. –84
78 = -m - 6
72=-m
m= - 72
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-72 is the right answer, they must have read your question wrong
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