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Find the value of the variable ''x'' 6x+6=4x+12

Find the value of the variable ''x'' 6x+6=4x+12

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  • yadayada
    yadayada May 11, 2010

    for what reason??

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6x+6=4x+12
6x=4x+6
2x=6
x=3

Posted on Sep 10, 2009

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Answer is X=3.

Posted on Sep 10, 2009

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6x+6=4x+12
Since 4x contains the variable to solve for, move it to the left-hand side of the equation by subtracting 4x from both sides.
6x+6-4x=12
Since 6x and -4x are like terms, add -4x to 6x to get 2x.
2x+6=12
Since 6 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 6 from both sides.
2x=-6+12
Add 12 to -6 to get 6.
2x=6
Divide each term in the equation by 2.
(2x)/(2)=(6)/(2)
Simplify the left-hand side of the equation by canceling the common factors.
x=(6)/(2)
Simplify the right-hand side of the equation by simplifying each term.
x=3

Good Luck

Posted on Sep 10, 2009

  • Shahzad  Waseem Akbar
    Shahzad Waseem Akbar Sep 10, 2009

    6x+6=4x+12

    Since 4x contains the variable to solve for, move it to the left-hand side of the equation by subtracting 4x from both sides.
    6x+6-4x=12

    Since 6x and -4x are like terms, add -4x to 6x to get 2x.
    2x+6=12

    Since 6 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 6 from both sides.
    2x=-6+12

    Add 12 to -6 to get 6.
    2x=6

    Divide each term in the equation by 2.
    (2x)/(2)=(6)/(2)

    Simplify the left-hand side of the equation by canceling the common factors.
    x=(6)/(2)

    Simplify the right-hand side of the equation by simplifying each term.
    x=3



    Good Luck

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1 Answer

I need to understand how to divide a binomial.


Let's take 2x^2 - 10x +12 and divide it by x-2.
__2x_-_6____________
x-2 ) 2x^2 - 10x + 12
2x^2 - 4x
------------
- 6x + 12
- 6x + 12
------------
0


How many times does x go into 2x^2. Put the answer, 2x above the 2x^2. Next mulitply (x-2) by 2x and put the answer under 2x^2. Now subtract that answer from 2x^2 - 10x and we get -6x (-10x - (-4x)).

How many time does x go into -6x. -6 time. Write this above the line and put the answer above the -10x. Next multiply (x-2) by -6 and put the answer under the -6x. Subtract and we get 0 and we are done. If we want to check our answer we can multiply (x-2) and (2x - 6) and we should get 2x^2 - 10 x + 12.

Good luck.

Paul

Oct 03, 2014 | Office Equipment & Supplies

2 Answers

Variable calculator


x=-2

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Finding x and y intercepts


I will not try to make sense of the context (there is no a). You have a linear relation between two variables x and s (y). Here is how you find the x- and y-intercepts.
x-intercepts (or zeros, roots).
The x-intercepts are the values of x when y=0. There could be several x-intercepts.
Set y=0 in the relation 90=6x+3(0) or x=90/6=15. Note: for a linear function y=ax+b there is only one x-intercept.x=-b/a

y-intercept. For a function there can only be one y-intercept.
It is the value of y when x=0
Set x=0 in 90=6(0)+3y, This gives y=90/3=30
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Nov 11, 2013 | Computers & Internet

1 Answer

What ia the sulution of 3y-6x=-3


To find the solution, first find the value of y for each equation.
Then substitue one equation into the other so that you only the x variable left.
Then just solve for x.
Once you have a value for x, then you can easily solve for y.


So for the first equation:

3y - 6x = -3
3y = 6x - 3

y = 2x - 1


Now for the second equation:

2y + 8x = 10
2y = -8x + 10

y = -4x + 5

Since both equations equal y, they also equal each other, therefore:

2x - 1 = -4x + 5

Now just solve for x:

2x + 4x = 5 + 1
6x = 6

x=1

Now substitute x=1 into either original equation:

y = 2x - 1
y = 2 (1) - 1
y = 2 - 1

y = 1


Therefore the solution is x=1 and y=1



Good luck, I hope that helps.


Joe.

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4aa123f.jpg
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18c49ac.jpg
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k24674_76.jpg

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Alok and Bhanu play the following min-max game. Given the expression N = 12 + X*(Y - Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu...


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