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How would you solve -4x-3=-3x - Apple Mac Book Pro 15.4" 2.53 Core2Duo 4GB RAM 320GB 5400 RPM HDD SuperDrive Mac Notebook

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The answer is simple algebra. This post should be on a math site.

Posted on Oct 24, 2012

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2(3-x)+3(x-1)=4x


x equals 1

First multiply the numbers outside the parentheses by what is inside the parentheses, which results in:

6 - 2x + 3x - 3 = 4x

then combine what you can:

6 - 3 = 3,
-2x + 3x = 1x

which leaves:

3 + x = 4x

Subtract the x on the left from the 4x on the right and you get:

3 = 3x

Divide by 3 to get the x alone

3 / 3 = 1

x = 1

Feb 02, 2014 | SoftMath Algebrator - Algebra Homework...

1 Answer

Mdas problem solving


if you mean {7(2)2+[(3-2)-4x(3)]2} or 7(2)2+[(3-2)-4x(3)]2
{28+[(1)-12]2}
{28+[-12]2}
{28+-24}
=4
or if it was 4x not 4 times
{7(2)2+[(3-2)-4x(3)]2}
28+[(1)-12x]2
28+-24x
=-28x+28

Jun 12, 2013 | Office Equipment & Supplies

1 Answer

How do i solve an equation like 8(3x-5)-4=4x-10 where i have something on both sides of the = sign on a TI 82?


The easiest solution would be to move the variable to only one side. This is not that difficult. For example your given equation is 8(3x-5)-4=4x-10; subtracting both sides of this equation by 4x would give 8(3x-5)-4-4x=10.

Jun 28, 2010 | Texas Instruments TI-82 Calculator

1 Answer

Give an example of a linear equation, solve it, and then check your work. Explain step-by-step what procedures you used and upon arriving at a solution, carefully check to see that your solution is correct...


4x+7=11 Solve for "x".
subtract 7 from each side of the equation
4x +7(-7)=11(-7) = 4x=4
divide both sides of the equation by 4
4x/4=4/4
therefore
x=1
Correct?

Dec 06, 2009 | 2006 Harley Davidson FXDI35 35th...

1 Answer

For instance if I have a problem of 4x+1-x=2x-13+5. how do I enter it in my T E to find wha is X


Hi,
This calculator does not have a Solve function or a solver. However this example of yours is very simple that you can do it by hand. If you do not mind I will show you how to solve it. Not everything needs a calculator.
You want to solve for x. OK
  1. Start by gathering similar terms 4x-x =3x; -13+5 =-8
  2. Rewrite your equation as 3x+1=2x-8
  3. Make the +1 change side while changing its sign
  4. 4x+1 -1 = 2x-8 -1 or 4x=2x-9
  5. Make +2x on the Right hand side go to the left hand side, changing its sign in the process 4x-2x=-9 or 2x=-9
  6. Divide both members by 2. This gives
  7. x=-9/2 or -4.5 if a decimal result is required.
Hope it helps.


Dec 06, 2009 | Texas Instruments TI-30XA Calculator

3 Answers

4x+3y=6 how do you solve for y


Hello,
I am not lecturing you but I would rather you understand how to do the manipulations involved in isolating a variable.
You want to isolate y, Ok
Start stripping it of all that is not y.

3y + 4x =6. (Addition is commutative, I can change the order of addition)
The term with y is added to 4x. If I want the term in y alone on one side I perform the inverse operation of addition, a substraction. I subtract 4x from both sides.
3y+4x-4x=6-4x. But 4x-4x=0, and we are left with

3y= - 4x+6

This operation is sometimes summarized as make one term change side while changing its sign

It would do no harm to put the right side of the foregoing equation in parentheses. I do that to avoid errors)

3y= (-4x+6).

Now y is multiplied by the number 3. To isolate y I have to perform the inverse operation of the multiplication, namely the division by 3

3y/3 =(-4x+6)/3. The left hand side is just y

y= (-4x+6)/3.

While result is correct, I can also open the parentheses
y= -4x/3 +6/3
y= -(4/3)*x +2.

Hope it helps.

Oct 22, 2009 | Texas Instruments TI-89 Calculator

1 Answer

How to solve (4+x) (5-x)/(2+x) (7-x)=1


(4+x)(5-x)=(2+x)(7-x)
20-4x+5x-x^2=14-2x+7x-x^2
20+x=14+5x
20-14=4x
x=3/2:ans;

Oct 21, 2009 | SoftMath Algebrator - Algebra Homework...

3 Answers

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


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

Sep 10, 2009 | Audio Players & Recorders

1 Answer

4x+8y=20 -4x+2y=-30


4x+8y=20 || /4
x+2y=5
x=5-2y

-4x+2y=-30 || /2
-2x+y=-15
-2(5-2y)+y=-15
-10+4y+y=-15
5y=-5
y=-1

x=5-2y || y=-1
x=5-2(-1)
x=5+2
x=7

Mar 10, 2009 | Bagatrix Algebra Solved! 2005 (105101) for...

2 Answers

How to use ti 89 with a problem like "-(3x+1)-(4x-7)=4-(3x+2)'


Just plug in one side of the equation and find the answer. Then plug in the other side and compare answers.

Feb 19, 2008 | Texas Instruments TI-89 Calculator

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