8n + 12 + (-9) - (-6n)
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5
Answer:
8n+12+(-9)-(-6n)
8n+12-9+6n
14n+3
14n=-3
n=-3/14
Answered by
0
8n+12+(-9)-(-6n) {-(-x) = +x)
8n+6n+12-9
14n+3
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