Posted by rachel on Tuesday, October 18, 2011 at 9:58pm.
3n+40=-6(-2n+1)+1
3n + 40 = 12n - 6 + 1
40 + 6 - 1 = 12n - 3n
45 = 9n
45/9 = n
? = n
5. And wouldn't it be -12n?
No. Multiplying 2 negatives produces a positive.
-6 * -2n = 12n
oh wait never mind. I see my mistake now. Thanks for the help.
You're welcome.
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