I'm a 7th grader in 8th grade advanced math. I don't want the answer to the problem I just want to know if I am doing it right.
2x + 4 = -2
First I wrote out the problem and subtracted 4 from -2 and 4.
Getting
2x = 2
So x = 2 or did I miss a step? Quick answers will be loved.
2006-09-28 10:17:11 · 23 answers · asked by flame_alchemist 3 in Science & Mathematics ➔ Mathematics
x=-3
2006-09-28 10:19:46 · answer #1 · answered by steve 4 · 1⤊ 0⤋
2x + 4 = -2
2x + 4 - 4 = -2 - 4
2x = -6 (not 2)
2x/2 = -6/2
x = ?
There you go. All the work without the answer.
You can't subtract a negative number from a negative number and end up with a positive number. That's where you went wrong the first time. Also, 2x = 2 does not give you x = 2. it would have been x = 1, but that's not right.
2006-09-28 10:24:03 · answer #2 · answered by JKKIII 2 · 0⤊ 0⤋
nope, subtract 4 from -2 which gives -6. then divide by 2 which gives a result of x = -3. You can always check your answer by plugging your answer into the equation,
2(-3) + 4 = -6 + 4 = -2
2006-09-28 10:24:56 · answer #3 · answered by delujuis 5 · 0⤊ 0⤋
WRONG! Look at this. if x=2 that means that 2x2+4=neg 2
I think u did good steps but subtracted it wrong.
2x+4=-2
-4 -4
2x=-6
-6 devided by 2 =-3 soooo x=-3
get it?
check it with a calculator if ur not sure
2006-09-28 10:22:39 · answer #4 · answered by CherryCherry 5 · 0⤊ 0⤋
If you subtract 4 from -2 (-2-4) you get -6. So 2x=-6. and x=-3. So your process was right but your arithmetic was wrong.
2006-09-28 10:21:33 · answer #5 · answered by Glenn N 5 · 0⤊ 0⤋
2x + 4=-2
First u take the 4 out by minusing 4-4 and -2-4 to get 2x=-6
u should know 2x=-6
x=-3
Im also a 7th grader in eith grade math
If u need any more help email me at cubshater2006@yahoo.com
2006-09-28 10:27:26 · answer #6 · answered by Sox Fan 93 2 · 0⤊ 0⤋
Dear ,
2x +4 = -2
Taking 4 to the other side ,
2x =-2 -4
2x=-6
Therefore , x= ?
Ur mistake was that u took -2+4 instaed of - 2-4 ...
Hope that helps
2006-09-28 10:27:17 · answer #7 · answered by WaterGuy 3 · 0⤊ 0⤋
You are wrong...
2x + 4 = -2
subtract 4 from both sides, you get -2 - 4 on the right side... this is -6
2x = -6
divide both sides by 2...
x = -3
Always remember to check your answers... 2*2 +4 does not equal -2
2006-09-28 10:21:20 · answer #8 · answered by AresIV 4 · 1⤊ 0⤋
You messed up. What you should do is:
Move the numbers on to one side and variables on the other.
2x +4 = -2 which is 2x = -2- 4
Now simplify from there.
2x = -6
Then divide 2 from each side to get one x
2x/2 = -6/2
Simplify
x= -3
2006-09-28 10:47:38 · answer #9 · answered by thedude2005 3 · 0⤊ 0⤋
x=-3
2006-09-28 10:28:01 · answer #10 · answered by chief 1210 1 · 0⤊ 0⤋