Hey there!
-4m + 8m = -16
COMBINE the LIKE TERMS
(-4m + 8m) = -16
4m = -16
DIVIDE 4 to BOTH SIDES
4m/4 = -16/4
SIMPLIFY IT!
m = -4
Therefore, your answer is: m = -4
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
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