I need to solve this equation and find out how many solutions there are and describe them all! 2x=x+x
2006-11-20 02:19:04 · 11 answers · asked by brittany_glid1890 2 in Science & Mathematics ➔ Mathematics
Now my Algebra is a bit rusty but I think there is only one answe and it is {all reals}. Here is my work...
2x=x+x (subtract x from the right side)
2x-x=x (subtract x again)
2x-2x=0
0=0
Like I said my Algebra is rusty, but I think I did that correctly. The major thing I remember is to set one side equal to 0 then pick a variable to isolate. We can do this another way too, I just noticed.
x+x=2x therefore
2x=2x
The answer is a set that contains all real numbers.
2006-11-20 02:35:21 · answer #1 · answered by Drafter_Guy 2 · 0⤊ 0⤋
a number next to a letter: 2x = 2 times the x. So it would = x +x b/c 2 times is the same as x + x. So if x=2 then 2x would be 2 x 2 wich is 4 so 2 +2 also is 4 so 2x-x+x is right. I'm not a very good teacher. Sorry.
2006-11-20 10:21:35 · answer #2 · answered by Lovely Lady 27 5 · 0⤊ 2⤋
I am not sure you did not make a mistake or forgot something
x+x = 2x and is exact for every value of X
2006-11-20 10:37:27 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
2x=2x
Infinitely many solutions
2006-11-20 10:20:30 · answer #4 · answered by purdue_softball12 2 · 0⤊ 0⤋
2x=x+x
2x=2x diviode this equation by 2
then is gon like this
x=x which is the answer
2006-11-20 13:23:04 · answer #5 · answered by combs 5 · 0⤊ 0⤋
2x=x+x
2x=2x
infinite solutions
2006-11-20 10:24:13 · answer #6 · answered by virendra s 2 · 0⤊ 0⤋
2x = x + x
2x = 2x
x = x
L = R
The answer is correct for every value of x.
2006-11-20 10:47:15 · answer #7 · answered by Anonymous · 0⤊ 0⤋
x can be anything. Two times anything is always equal to that same thing added to itself.
I hope you'll forgive me for not describing every number that exists!
2006-11-20 10:22:06 · answer #8 · answered by Anonymous · 0⤊ 0⤋
2x=x+x
2x=2x
x=x
There are alot of solutions because x could be anything!
2006-11-20 10:22:35 · answer #9 · answered by Anonymous · 0⤊ 1⤋
As many as you can think of.
2006-11-20 10:21:52 · answer #10 · answered by Bil B 3 · 0⤊ 0⤋