Question

Solve for x: 4x + 2 = x – 7

Answer 1

These are really quite simple. Do you have absolutely no clue where to start? Start by shifting all the x to one side.

Answer 2

basically your just moving this over
4x+2=x-7
-x -x
_______________
like such and just keep moving things over to get x on one side and the number on the other

Answer 3

do you understand

Answer 4

No , i succck at mathh c;

Answer 5

You want to get x on only one side of the equation. You want to remove it from the right side, so you subtract it from there. However, to keep both sides equal, you must subtract x on the left side too. So:
3x + 2 = -7
How would you proceed from there, following the same logic?

Answer 6

@aussy123 , missed out a -ve sign for the 7 there. :)

Answer 7

@msohcw thx I really didnt notice :)

Answer 8

soo illl repeat
ok ill show you the beginning you simplify
4x+2=x-7
-x -x
____________
3x +2=- 7
-2 -2
________________
3x=-9
now simplify

Answer 9

if its - 2 isnt it supposed to be - 5 ?

Answer 10

when you move the 2, you have to use its opposite which is -2

Answer 11

so it would be , like minus 2 on both sides ?

Answer 12

You're effectively subtracting 2 from both sides.

Answer 13

Yep. So that you can keep the two sides equal.

Answer 14

x=-3

Answer 15

yes

Answer 16

so now at the bottom its minus 3 as well ?

Answer 17

s

Answer 18

at the bottom you do the opposite of multiplication which is division and divide 3 over to the -9...and -9 divided by 3 is

Answer 19

-3 right because ; a - divided by a postive is a negative o;?

Answer 20

CORRECT!!!

Answer 21

DO you understand now?

Answer 22

yeah , i just need you too explain . How too pellet all the x's too one side . Like where do the other numbers go ?

Answer 23

*put >.<

Answer 24

ok above when you moved the x over by subtracting it, you ended up with 3x+2=-7 all you had to do is do the same thing to the 2 that you did with the x..and make sure you when you do problems like this to take the easiest road or it will become tricky...but I believe you can do it!!

Answer 25

Help me start off this one , and ill do the rest c: ?
Solve for x: 2x – 1 = x – 6

Answer 26

Start by shifting the x s again all to one side. How do you think you should do that?

Answer 27

i think i have the answer xD

Answer 28

Good job. What grade are you in? Do your teachers not teach you anything >.< ?

Answer 29

isss it -5 o; ? & well im in summer school thats why ,

Answer 30

were just on the computers

Answer 31

Yep. -5 indeed. To check, you can put it back into the equation to see if it works.
2x – 1 = x – 6
2(-5) -1 = (-5) -6
-10-1 = -11
-11 = -11

-11 does equal -11 (of course), so it's right.

What's summer school? An advanced program? (I'm not from the US.)

Answer 32

itss to make up high school credits , so you can go to the next grade c:

Answer 33

I see So you're 15/16? Hope you're understanding algebra better now. If you've got an iPad/iPhone, go buy DragonBox, it's a great (and ACTUALLY fun) app to learn algebra with.

Answer 34

yeaah im 15