They are fractions and please help. Thanks for the last answer.
2007-09-21 15:23:50 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5/9n-2=2/3n..... Start with the given equation
(9)(5/9n-2)=(9)(2/3n)..... Multiply both sides by the LCM of 9. This will eliminate the fractions
5n-18=6n..... Distribute and multiply 9 by each term on both sides
5n=6n+18......Add 18 to both sides
5n-6n=+18...... Subtract 6n from both sides
-n=18...... Combine like terms on the left side
n=(18)/(-1)...... Divide both sides by -1 to isolate n
n= -18...... Divide
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Answer:
So our answer is n= -18
2007-09-21 15:32:51 · answer #1 · answered by Jim 5 · 1⤊ 0⤋
(5/9n) - 2 = 2/3n
- 2 = 2/3n - 5/9n
- 2 = 6/9n - 5/9n
- 2 = 1/9n
n = - 18
Answer: n = - 18
Proof:
(5/9[- 18]) - 2 = 2/3(- 18)
- 10 - 2 = - 12
2007-09-21 22:44:05 · answer #2 · answered by Jun Agruda 7 · 3⤊ 0⤋
times it all by 9 to get
5n-18=6n
subtract 5n to get
-18=n
2007-09-21 22:31:02 · answer #3 · answered by Mythical Tales 6 · 0⤊ 0⤋
(5/9) n - 2 = (2/3) n
5 n - 18 = 6 n
n = - 18
2007-09-25 14:49:03 · answer #4 · answered by Como 7 · 0⤊ 0⤋
Simple, multiply everything by 9.
5n-18=6n
Then, get all the n's on one side by subtracting 5n from both sides.
-18=n, or n=-18.
2007-09-21 22:32:51 · answer #5 · answered by loser 4 · 1⤊ 0⤋