2007-11-28 13:18:25 · 6 answers · asked by funnybonez93 2 in Science & Mathematics ➔ Mathematics
4n + 6 - 27 = 15
4n = 36
n = 9
2007-11-28 22:48:41 · answer #1 · answered by Como 7 · 2⤊ 1⤋
1/2 (8n +12) - 27 = 15
1/2(8n +12) = 42
8n+12 = 84
8n = 72
n = 9
2007-11-28 21:23:03 · answer #2 · answered by sayamiam 6 · 0⤊ 1⤋
4n + 6 - 27 = 15
4n - 21 = 15
4n = 36
n = 9
2007-11-28 21:29:54 · answer #3 · answered by MZ954 2 · 0⤊ 1⤋
4n + 6 - 27 = 15
4n - 21 = 15
4n = 36
n = 9
2007-11-28 21:22:49 · answer #4 · answered by Ms. Exxclusive 5 · 1⤊ 1⤋
mutliply by 2 to clear fractions
8n+12-54=30
8n=72
n=9
2007-11-28 21:21:24 · answer #5 · answered by RickSus R 5 · 1⤊ 1⤋
to eliminate the fraction, multiply each side by 2...
1(16n+24)-54=15
16n-30=15
add 30 to each side...
16n=45
divide each side by 16...
n=45/16=2.8
2007-11-28 21:26:16 · answer #6 · answered by Katrina 2 · 0⤊ 1⤋