What is the value of n in the equation 3n + 2(n + 2) = 9n + 12?
2 answers:
Answer:
3n+2(n+2)=9n+12
3n+ 2n + 4 = 9n + 12
3n+ 2n +4 - 4 = 9n + 12 - 4
3n + 2n - 9n = 12 - 4
5n - 9n = 8
<u>-4n </u> = <u>8</u>
-4. -4
n. = - 2
3n + 2 (n+2) = 9n + 2. N = -2
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