Solve for x:
x+a=2x+2a-b
can somebody solve this please!
and give me a good site were I can learn to solve this kind of problems? its ok if you don't have any!
2007-05-02 21:12:32 · 12 answers · asked by w s 3 in Science & Mathematics ➔ Mathematics
x + a = 2x + 2a - b
<=> x - 2x = 2a - b - a
<=> -x = a - b
<=> x = b - a.
2007-05-02 21:16:14 · answer #1 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
i hate to do this........but here it is
x + a = 2x + 2a -b
bring all x in one side by either crossmultiplying diviing subtraction whatever.
here we just have to bring x to the left and the remaining to the right where the sign changes if you bring from one side to the other
therefor it is
(2x - x) = a -( 2a - b)
or x = -a +b
Instead of searching websites and spending time, go through books , real books i mean if you really want to learn.
And if you just wanna show to your mom that ur r pretending to study by sitting infront of the com . you may..
i would suggest books on algebraic equations that can be found anywhere
All the best
2007-05-02 21:23:32 · answer #2 · answered by feroz _apple 1 · 0⤊ 0⤋
When solving equations always do the same thing to both sides:-
Take x from both sides
a = x + 2a - b
Add b to both sides
a + b = x + 2a
Take 2a from both sides
- a + b = x
which is the same as
x = b - a
2007-05-02 23:37:07 · answer #3 · answered by Como 7 · 0⤊ 0⤋
This is a first degree eq. in one variable
Put the variable in the L.H.S & the constants in the other side
x - 2x = 2a - b - a
simplify
-x = a - b
didivide the two sides by the coeffecient of x (-1)
x = b - a
2007-05-02 21:18:30 · answer #4 · answered by a_ebnlhaitham 6 · 0⤊ 0⤋
x-2x=2a-a-b
-x=a-b
x=b-a
Therefore X= b-a
I don't know the site; but u can learn the basics from the school & and practice a lot of questions.
2007-05-02 21:17:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋
put x one side and the remaining to the other side, when you're changing the sides change the plus to minus or vice versa.
x - 2x = 2a - b - a
-x = a - b
multiply each side by -1
x = b - a
2007-05-02 21:16:34 · answer #6 · answered by nelaq 4 · 0⤊ 0⤋
x+a = 2x+2a-b
2x-x = b-2a+a
x = b-a
1st- you bring all the "x" together to one side.
remember if u bring a postive number across u gotta change it to a negative number...n via versa.
2nd-do the minus and add dat stuff.
3rd- viola! the answer~
hmm..not too sure..ask ur teacher..would be best.
ekke
not sure bout d sites.sry
good luck!
2007-05-02 21:20:25 · answer #7 · answered by Jade 3 · 0⤊ 0⤋
x+a=2x+2a-b
x-2x=2a-a-b
-x=a-b
x=b-a
not enough info to solve this. if a=b then the answer is x=0
2007-05-02 21:17:04 · answer #8 · answered by colesey72 4 · 0⤊ 0⤋
x+a=2x+2a-b
Fist step: x-2x=-a+2a-b
Second step: -x=-a-b
Third step: x=a+b is the answer.
2007-05-02 21:18:33 · answer #9 · answered by bach 2 · 0⤊ 0⤋
Get a text book showing basic algebra.
2007-05-02 21:17:05 · answer #10 · answered by worried person 1 · 0⤊ 0⤋