2007-11-02 17:05:19 · 4 answers · asked by orleans6062000 2 in Science & Mathematics ➔ Mathematics
3y - 5y + 2 = 3
- 2y = 1
y = - 1 /2
2007-11-03 00:58:38 · answer #1 · answered by Como 7 · 0⤊ 1⤋
common denominator:
multiply by 6 all the way across:
6 ( y/2-5y/6+1/3=1/2)
3y - 5y + 2 = 3
That look easier??
3y-5y +2 = 3
-2y = 1
y = -1/2
Check:
(-.5)/2-5(-.5)/6+1/3=1/2
-1/4 + 5/12 + 1/3 = 1/2
Common denominator again: Multiply by 12:
12(-1/4 + 5/12 + 1/3 = 1/2)
-3 + 5 +4 = 6
2+4 = 6
6 = 6
Since this is true,
y = -1/2
2007-11-02 17:15:35 · answer #2 · answered by sayamiam 6 · 0⤊ 0⤋
y/2-5y/6+1/3=1/2
3y-5y+2/6 = 1/2
-2y+2/6 = 1/2
-4y + 4 = 6
-4y = 6-4
-y = 2/4 = 1/2
y = -1/2
2007-11-02 17:52:54 · answer #3 · answered by Shreya S 3 · 0⤊ 0⤋
y = -1/2
graphing calculators = amazing :D
2007-11-02 17:12:12 · answer #4 · answered by poli 2 · 0⤊ 1⤋