Question

78 = -2(m + 3) + m

Answer 1

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Answer 2

78 = -2m - 6 +m (from distributing the 2)
78 = -1m - 6 (combine like terms
84 = -1m (add 6 to both sides)
m = -84 (by dividing both sides my -1)

Answer 3

ty :)

Answer 4

you are welcome