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the answer is 2!!!!! 2222222!!!!!!!!!!

TWO!!!!!!!!!!!!!!!!!!!! 

1+1=2

(why are you asking this?)

3x - (5-4x) =

3x - 5- (-4x) =

3x -5 + 4x =

x-5

SQRT (-1) is   DEFINED to be  '  i  '

9(5-3x)=(1/2)(x+4)    First, use distributive property

45 - 27x = .5x + 2     add 27x to both sides of the equation

45 = 27.5x + 2           SUbtract 2 from both sides

43 = 27.5 x               divide both sides by 27.5

43/(27.5)  = x             And simplify if needed

86/55 = x      0r  1.5636

Solve for x:
9 (5-3 x) = (x+4)/2

Multiply both sides by 2:
2×9 (5-3 x) = 1 (x+4)

(2 (x+4))/2 = 2/2×(x+4) = x+4:
2×9 (5-3 x) = x+4

2×9 = 18:
18 (5-3 x) = x+4

Expand out terms of the left hand side:
90-54 x = x+4

Subtract x from both sides:
90+(-54 x-x) = (x-x)+4

-54 x-x = -55 x:
-55 x+90 = (x-x)+4

x-x = 0:
90-55 x = 4

Subtract 90 from both sides:
(90-90)-55 x = 4-90

90-90 = 0:
-55 x = 4-90

4-90 = -86:
-55 x = -86

Divide both sides of -55 x = -86 by -55:
(-55 x)/(-55) = (-86)/(-55)

(-55)/(-55) = 1:
x = (-86)/(-55)

The sign of (-86)/(-55) is positive, so (-86)/(-55) = 1×86/55:
Answer: |x = 86/55

This does not translate very well from Albanian to English.

Perhaps if you add some numbers it may help.  The question appears to be incomplete.  :/

Kjo nuk përkthehet shumë mirë nga shqipja në anglisht.

Ndoshta, nëse ju shtoni disa numra që mund të ndihmojë. Pyetja duket të jetë e paplotë. : /

I would say you are doing VERY BADLY!!. Why? Because the sine and cosine MUST be between -1 and +1. Try it on a calculator.

if 2^21=x+2^20 ,who is x and why?

Solve for t over the real numbers:
15.9662^(3 t) = 30

15.9662^(3 t) = (207561/13000)^(3 t):
(207561/13000)^(3 t) = 30

Take the logarithm base 207561/13000 of both sides:
3 t = (log(30))/(log(207561/13000))

Divide both sides by 3:
Answer: |
 | t = (log(30))/(3 log(207561/13000)) =0.40921938......etc.

If the youngest child received M amount, then the middle child received 2M and the oldest child received 3M.

M +2M +3M =2,436

6M = 2,436

M =2,436 / 6

M = $406 Amount received by by youngest child

$406 x 2 = $812 Amount received by the middle child

$406 x 3 = $1,218 Amount received by eldest child.

x² (x-1)

or

(x² -1)x

(x+1)(x-1)x     its also answer  both answer

the answer is 69 obviously

Very nicely done  EMP  :))

Hi Omi,

Thanks for that great answer :))

I have seen that method uesd, and I have worked through it in parrot fashion, but I have never committed it to memory.

It is a very good method though.

There is a good you tube out there somewhere on it  because that is where I amost likely saw it used.

If anyone is interested maybe I could chase it down.  ://

On the other hand if EighthMersenePrime needs to know how to do it a different method perhaps he/she would like to say so.  

(16-(0.878/26))^3t=30

I shall answer the question that you have asked - it is most likely not the question you intended but I am trying to get people to uses brackets properly.  SO

ask your question again on this thread if you would like to correct it by inserting brackets.

\((16-(0.878/26))^3t=30\\ t=30\div (16-(0.878/26))^3\\\)

I have used the Gauss algorithm.

dy/dx = 0 at a turning point.

So

2kx-8 = 0    at the given turning point  (3,4)  

At the point (3,4)   x = 3.

Substitute in 2kx-8 = 0 to get

6k-8 = 0

k=8/6 or 4/3

It WAS MINUS 12 ....and it got COLDER by 6 degrees????      -18 F

Just use the calculator to divide the top number (Numerator) by the bottom number (denominator)

3/7  =  3 divided by 7  =  .428571429

 how do u get 15/4 with the math problem x/3-1/2=3/4

\(\frac{x}{3}-\frac{1}{2}= \frac{3}{4} \)

\(x =3 \times \left(\frac{3}{4}+\frac{1}{2}\right)\)

\(x = 3 \times 1 \frac {1}{4}\)

\(x= 3 \frac {3}{4} \ das \ sind \ \frac {15}{4}\)

asinus !

4/7w=16

\(\frac{4}{7w}=16\)

\(4=16 \times 7w\)

\(w= \frac {4}{16 \times 7}\) 

\(w= \frac {1}{28}\)

!