Question

What is x when 3x+20=2x-10

Answer 1

-30

Answer 2

dont just give an answer that is useless.... write a few words how to get it

Answer 3

her ques just asks about x.

Answer 4

its better to explain things 3x+20=2x-10
5x+20=-10
you subtract 20 by -10 you get -30
5x=-30 then you divide 5 by negative 30 and you get x=-6
basically the answere above is wrong

Answer 5

oh and you add the x`s

Answer 6

jackie actually you are wrong :(

Answer 7

and actually its positive six two negatives equal a positive

Answer 8

my bad

Answer 9

3x+20=2x-10
3x-2x=x not 5x

Answer 10

but it is better to explain! I do lot of mistakes I guess

Answer 11

you don subtract you add them the only time you subtract is if it has -

Answer 12

3x + 2x

Answer 13

oh forget it haha thats the way i was taught but we all do things differently eventually one of us is right

Answer 14

no
3x+20=2x-10
you want to have all the x-s in one side, so you can subtract 3x to get rid of 3x from the left or subtract 2x to get rid of 2x from the right side.
3x+20=2x-10
3x-2x+20=2x-2x-10
x+20=-10
x=-30

Answer 15

I thought you always add the x`s my mistake your good at this XP

Answer 16

I am doing maths at university so it would be bad if I wouldnt be able to do this :-)

Answer 17

But isnt it positive since you subtract 20 from from negative 10 you`ll get 30

Answer 18

-10-20=?

Answer 19

a negative and a negative equalls a positive

Answer 20

a negative times a negative is a positive

Answer 21

or 2 negative signs give positive, for example 10-(-5)=15

Answer 22

but -10-20=-30 there is no trick here

Answer 23

but since its +20 you subtract it on the other side with -10 = positive thirty

Answer 24

are you ok until x+20=-10 ?

Answer 25

Yes sir

Answer 26

:-)
if you add 20 to both sides
x+20+20=-10+20
x+40=10
did this help?

Answer 27

you subtract 20 but what im saying is isnt a gegative and a negative equLL a positive

Answer 28

not when you subtract

Answer 29

you subtract 20 to get rid of it on one side

Answer 30

yeah
x+20-20=-10-20
x=-10-20=-30

Answer 31

but the thing is two negatives equall a positive

Answer 32

if you are in 10 dollar debt and they take away 20 dollars from you, than you will be in 30 dollar debt

Answer 33

right or wrong cuz im so about to give up

Answer 34

depends :)

Answer 35

-9*-2=18
5-(-10)=15
-5-10=-15
5-10=-5

Answer 36

hmm why don you help me on my ? your good at math and I give up way to confusing.

Answer 37

well I know that I am the 1% of the population that likes maths

Answer 38

then help me out yeah its still unanswered

Answer 39

which one the - - =+ ?

Answer 40

no click unanswered ? and its the baseball one

Answer 41

3x+20=2x-10 becomes 3x-2x= -30 then x(1)=-30 so x= -30