1) 7+3x=3+5x
2006-06-10 04:23:55 · 23 answers · asked by kabir_fiona 2 in Science & Mathematics ➔ Mathematics
We bring the variable (x in this case) to one side and everything else to the other side.
3x-5x = 3-7 [rearranging the equation]
-2x = -4
x = 2 [dividing both side by -2]
2006-06-10 04:25:07 · answer #1 · answered by organicchem 5 · 1⤊ 0⤋
X=2
2006-06-10 16:48:40 · answer #2 · answered by Luis_F_R 2 · 0⤊ 0⤋
oh that's too easy
7 + 3x = 3 + 5x
=> 7 - 3 = 5x - 3x
=> 4 = 2x
=> x = 4/2 = 2
2006-06-10 11:34:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Remember that whatever you do to one side of the equation (= sign) you must do to the other side as well.
7+3x=3+5x
Get the x to one side. To do this subtract 3x from both sides
7+3x-3x=3+5x-3x
Reduce
7=3+2x
Get the numbers to one side. To do this subtract 3 from both sides
7-3=3+2x-3
Reduce
4=2x
Get x by itself. To do this divide both sides by 2
4/2=2/2x
Reduce
2=x
Answer is 2
2006-06-10 11:32:38 · answer #4 · answered by calcdffirefighter 3 · 0⤊ 0⤋
18
2006-06-10 11:26:09 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I like how organicchem wrote "here's the answer" first, so that he can solve the problem and his answer will still be first. But here's the solution anyway:
7 = 3 +5x - 3x
4 = 2x
2 = x
2006-06-10 11:27:25 · answer #6 · answered by EvilFairies 5 · 0⤊ 0⤋
7+3x-3x = 3+5x-3x
7=3+53x
7-3=3-3+53x
73=53x
x=73/53
Now I know I am such a genius.
2006-06-10 16:37:15 · answer #7 · answered by 2feEThigh 5 · 0⤊ 0⤋
7+3x= 3+5x
-3 -3
4+3x= 5x
-3x -3x
4= 2x
/2 /2
x=2
tada! : )
2006-06-10 14:42:12 · answer #8 · answered by Amber 1 · 0⤊ 0⤋
4=2x
x=2
2006-06-10 11:47:34 · answer #9 · answered by gari 3 · 0⤊ 0⤋
x=2
7+6=3+10
I think I haven't done algebre in about 7 years.
2006-06-10 11:27:32 · answer #10 · answered by ~Genie~ 3 · 0⤊ 0⤋