Answer:
n = 1
Explanation:
1 - 8n - 8 = -7n - 6n - 12
-8n + 7n + 6n = -12 + 8 - 1
5n = -5
n = -5/5
n = -1
probe:
1 - 8*-1 - 8 = -7*-1 - 6*-1 - 12
1 + 8 - 8 = 7 + 6 - 12 = 1
Simplify
-8n - 7 = -13n - 12
Add 7 to both sides
-8n = -13n - 5
Add 13n to both sides
Divide both sides by 5
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