2007-01-01 16:17:05 · 14 answers · asked by swimchick793@pacbell.net 1 in Science & Mathematics ➔ Mathematics
3x+5x=0
8x=0
x=0
2007-01-01 16:20:51 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Others have answers correct, in that
3x = -5x, therefore 3x + 5x = 0, 8x = 0, x = 0.
I just wanted to add (as a side note) that it is NEVER a good idea to divide by a variable because you eliminate values as a result. For instance,
3x = -5x
Divide both sides by x, and we get
3 = -5, which implies no solution. But there is a solution (x = 0), so we've just eliminated one.
Just as an FYI.
2007-01-02 00:26:11 · answer #2 · answered by Puggy 7 · 0⤊ 0⤋
x=0
2007-01-02 00:43:20 · answer #3 · answered by futureastronaut1 3 · 0⤊ 0⤋
x=0
2007-01-02 00:22:34 · answer #4 · answered by A T 2 · 0⤊ 1⤋
3x+5x=-5x+5x
8x=0
x=0/8
x=0
2007-01-02 00:28:01 · answer #5 · answered by iyiogrenci 6 · 0⤊ 0⤋
the answer is 0
2007-01-02 00:29:56 · answer #6 · answered by sumone^^ 3 · 0⤊ 0⤋
Add 5x to both sides. 8x = 0
So x = 0.
Unless you mean something else...
2007-01-02 00:19:15 · answer #7 · answered by bictor717 3 · 1⤊ 0⤋
3x=-5x
3x+5x=0
3x=0
x=0
2007-01-02 00:35:20 · answer #8 · answered by Tan L 2 · 0⤊ 0⤋
Has to be 'zero', by elimination. Multiply anything by two different figures and get the answers to be equal - has to be zero.
2007-01-02 00:28:20 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Divide by 3x on both sides.
x = 1.6
2007-01-02 00:27:57 · answer #10 · answered by Anonymous · 0⤊ 0⤋