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Mathematics
Ben Welch
24 June, 02:46
What is the solution of 3 (n+2) = 9 (6-n)
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Alejandra Hester
24 June, 04:25
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3 (n+2) = 9 (6-n)
=>3n+6=54-9n
=>3n+9n=54-6
=>12n=48
=>n=48/12
=>n=4
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Darren Mendez
24 June, 05:03
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n = 4
Step-by-step explanation:
Operate using distributive property to free both expressions from the grouping symbols (parentheses):
3 (n+2) = 9 (6-n)
3n + 6 = 54 - 9n
Now add "9n" to both sides to gather all terms with the unknown "n" on one side of the equal sign:
3n + 9n + 6 = 54
12 n + 6 = 54
Now subtract 6 from both sides to have the pure numerical terms on the right hand side of the equation:
12 n = 54 - 6
12 n = 48
Now divide both sides by 12 in order to solve for the unknown "n":
n = 48/12
n = 4
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