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Mason Terrell
Mathematics
8 February, 02:23
What's - 2 (7n-6) + n=-3-8n
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Cynthia Odonnell
8 February, 02:24
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-2 (7n-6) + n=-3-8n
multiply the bracket by - 2
-2 (7n) - 2 (-6) + n = - 3-8n
-14n+12+n = - 3-8n
-14n+n+12 = - 3-8n
-13n+12 = - 3-8n
Move - 8n to the other side. Sign changes from - 8n to 8n.
-13n+8n+12 = - 3-8n+8n
-5n+12 = - 3
move + 12 to the other side
sign changes from + 12 to - 12
-5n+12-12 = - 3-12
-5n = - 15
Divide by - 5
-5n/-5 = - 15/-5
n = 3
Answer : n = 3
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