2007-05-20 12:53:31 · 15 answers · asked by tuji h 1 in Science & Mathematics ➔ Mathematics
2x+5=17
-minus 5 from each side-
2x=12
-divide by 2 on each side-
x=6
2007-05-20 13:06:58 · answer #1 · answered by adashiver 2 · 0⤊ 0⤋
well remember try to isolate the variable
what u do to one side u have to do to the other
2x+5=17
2x+5-5=17-5 (get rid of the 5)
2x=12 (ur left with 2x so divide that by 2 to isolate the x)
2x/2=12/2 (divide both sides by 2)
x=6 (you get the value of x)
2007-05-20 13:04:27 · answer #2 · answered by Haris F 2 · 0⤊ 0⤋
you want the x alone so you can solve for it
so subtract 5 from both sides 2x + 5 - 5 = 17 - 5
then 2x = 12 divide both sides by 2 2x/2 - 12/2
the answer is x = 6
2007-05-20 13:17:27 · answer #3 · answered by KG 3 · 0⤊ 0⤋
This is a simple algebra problem, where you basically have to combine like terms and work backwards to get x. Let's look at the equation:
2x+5=17
We can start by getting rid of the 5. To do that, you can subtract 5 from both sides.
2x+5 - 5 = 17-5
The 5's cancel out.
2x = 12
Now, we need to get rid of the 2 that is multiplying the x. We can get rid of it by doing the opposite of multiplication, that is, dividing both sides by 2.
2x/2 = 12/2
x = 6
I hope that helps!
2007-05-20 12:59:54 · answer #4 · answered by Gary 6 · 0⤊ 0⤋
2x+5=17
-5 -5
2x=12
/2 /2
x=6
2007-05-20 12:58:14 · answer #5 · answered by alyaly12 2 · 0⤊ 0⤋
x=6
subract 5 from both sides (5-5=0, 17-5=12)
divide by 2 (12/2=6)
2007-05-20 12:57:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋
x=6
2007-05-20 12:55:54 · answer #7 · answered by HP7 2 · 0⤊ 0⤋
2x+5=17
x=6
2(6)+5=17
12+5=17
2007-05-20 12:59:31 · answer #8 · answered by Lady C 1 · 0⤊ 0⤋
You HAVE to be kidding!!!!
2x+5=17
17-5=12
12/2=6
x=6
2007-05-20 13:01:36 · answer #9 · answered by Anonymous · 0⤊ 0⤋
2x+5-5=17-5
2x=12
2x/2=12/2
x=6
2007-05-20 12:58:03 · answer #10 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋