2007-10-24 12:13:41 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5v - 2v = - 9 - 12
3v = - 21
v = - 7
2007-10-28 08:53:52 · answer #1 · answered by Como 7 · 0⤊ 0⤋
yes, v = -7 but "give a man a fish, feed him for a day. teach a man to fish, feed him for a lifetime."
12 + 5v = 2v - 9 1) put all integers to one side, +9 both sides
21 + 5v = 2v 2) put all v's to one side, -5v both sides
21 = -3v 3) remove v coefficient, divide -3 both sides
-7 = v
AND YOUR DONE!!!
2007-10-24 12:30:35 · answer #2 · answered by Bostonaholic 1 · 0⤊ 0⤋
12+5v=2v-9
subtract 2v from both sides
12+3v=-9
subtract 12 from both sides
3v=-21
divide both sides by 3
v=-7
2007-10-24 12:24:45 · answer #3 · answered by Carter 2 · 0⤊ 0⤋
v= -7
2007-10-24 12:19:01 · answer #4 · answered by Rocker247 2 · 1⤊ 0⤋