First, we use distributive property.
-2 * 8m = -16m
-2 * 8 = -16
-16m -16 = -16
Then, add 16 to each side.
-16m = 0
Divide 0 by -16
0 = m
-2(8m+8) = -16
-16m - 16 = -16
+16 +16
--------------------------
-16m = 0
m = 0
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