2/9n-5=2+5/9n
2007-09-05 10:51:35 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Start by multiplying both sides by 9, it is all downhill from there.......
**OK, How can people make this so hard!
Multiply both sides by 9:
2n-45=18+5n
Group like Terms:
-3n=63
Solve for n by multiplying by -1:
3n=-63
..
2007-09-05 10:54:49 · answer #1 · answered by muddypuppyuk 5 · 0⤊ 0⤋
2/9n - 5= 2 + 5/9n
-5 - 2 = 5/9n - 2/9n
-7 = 3/9n
9(-7) = 3n
-63 = 3n
n = -21
2007-09-05 10:55:39 · answer #2 · answered by jemt113 2 · 0⤊ 0⤋
2/9n-5=2+5/9n (I hope it's not 2/(9n-5) etc)
2/9n-5/9n = 2+5
0r is it 2/9 of n - 5/9 of n = 7
I give this up it's too ambiguous
answer is -1/21 0r -21 or something totally different if
2/(9n-5) etc
2007-09-05 11:08:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Assuming that the problem is exactly as you have written it,
-7 = 3/9n =1/3 n
n = -21
2007-09-05 11:02:37 · answer #4 · answered by ironduke8159 7 · 0⤊ 0⤋
2/9n-5=2+5/9n
-2/9n -2/9n
-5=2+3/9n
-2 -2
-7=3/9n
x9 -9
-63=-3n
/-3 /-3
21=n
2007-09-05 10:56:48 · answer #5 · answered by Anonymous · 0⤊ 0⤋
2/9n-5=2+5/9n
-5-2=5/9-2/9n
-7=3/9n
-7/(3/9)=n
-7(9/3)=-21
n=-21
2007-09-05 10:56:55 · answer #6 · answered by Cham Cham 2 · 0⤊ 0⤋