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Assume the expression is:
15 = 9 + 3n
Subtract both sides by 9 to get:
15 - 9 = 9 - 9 + 3n
6 = 3n
Finally, divide both sides by 3 to get:
6/3 = 3n/3
n = 2
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∙ 11y ago
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What does 3n equals 15 plus 12 equal to?
3n = 15 + 12 = 27, 27/3 = 9 = n
What is 3n plus 9 equals 7n-15?
n=6
How do you do 3n plus 6 equals -9?
3n + 6 = -9 Subtract 6 from both sides: 3n = -15 Divide both sides by 3: n = -5 Therefore n = -5
How do you get 3 to the power of n plus 2 plus (3 to the power of n plus 3 minus 3 to the power of n plus 1)?
3n+2 + (3n+3 - 3n+1) = 3n+1+1 + (3n+1+2 - 3n+1) = 3*3n+1 + (9*3n+1 - 3n+1)= (3+9-1)*3n+1 = 11*3n+1.
What is the answer to 3 plus 3n equals 9 plus 2n plus 4n?
3 + 3n = 9 + 2n + 4n n = -2
What is the answer to (2n plus 5)-(-3n-7)(4n-9)?
It is 12n2 + 3n - 58
The inequality is greater than 24?
-3(n-5)=24 -3n + 15 = 24 -3n= 24-15 -3n = 9 n=9/-3 n=-3
How do you get this 3n plus 2 plus (3n plus 3 - 3n plus 1)?
3n + 2 + (3n + 3 - 3n + 1) = 3n + 2 + (3n + 3 - 3n + 1) = 3n + 2 + (4) = 3n + 6
What is 3N plus 2 plus 3N plus 2?
3n+2+3n+2=6n+4
What is 3 times a number plus 15 divided by 2?
(3n + 15) / 2
What is 3n-9 plus 4n equals 8n?
3n - 9 + 4n = 8nCombine like terms:7n - 9 = 8nSubtract 7n from both sides:-9 = n
5n minus 9 equals 2n plus 6?
Subtract 2n from each side: 3n - 9 = 6 Add 9 to each side: 3n = 15 Divide both sides by 3: n = 5 Therefore, n = 5
