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To evaluate the expression you need the value of x.
To solve you do as follows
Take the exponential of both sides of ln(5x)=3
This gives x=(1/5) e^(3)

Apr 23, 2014 | Texas Instruments TI 30XIIS Scientific...

1 Answer

If y=f(x)=5x+3/4x-5 , show that x=f(y)

Write the equality in the form y=(5X+3)/(4X-5). Insert parentheses to ensure a correct result.
  1. Multiply both sides of the equality by (4X-5). This gives (4X-5)y=(5X+3).
  2. Open the parentheses as 4Xy-5y=5X+3
  3. Subtract 5X from both sides 4Xy-5y-5X=5X-5X+3
  4. Add 5y to both sides 4Xy-5X-5y+5y=5y+3 or 4Xy-5X=5y+3
  5. Factor the X on the left side X(4y-5)=5y+3
  6. If 4y-5 does not vanish, you can isolate X by dividing both members of the equality by (4y-5).
  7. You get X=(5y+3)/(4y-5)=f(y)
Compare the initial function f(x) and the function just found: They have the same form: X and y have switched places.

Jun 24, 2012 | Mathsoft StudyWorks! Mathematics Deluxe...

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I need an unlock code Please =(

the default code for nokia phones is 12345,after you got 5x incorrect entry of will ask you to wait for couple of minutes,after doing so,you can now enter 12345 as the new passcode.if this wont work you need to hard reset your phone by pressing *#7370# it will delete all of the data and settings that you saved in the phone settings but not those in the memory card but it is always advisable that yot have a back up before doing so.

thank you for choosing

Dec 04, 2011 | Nokia 1208 Cellular Phone

1 Answer


suppose y=0;
then 5x+0=25
Supoose x=0;

Jun 27, 2011 | Computers & Internet

1 Answer

How do you use this stupid calculator? I had a TI-89 and had no problems but I had to get a standard calculator for college, they won't allow the graphing calculators but I keep getting an Error 02...

Standard calculators can not really understand abstract notation. So 5x3/5x to the calculator is not being read as 5x (times) 3 (divided by) 5x, it is actually trying to understand x as a number. and if x isn't assigned as a number you'll get an error. SO no x's or y's or any letters. Anything with letters you have to do on your own. So 5x*3 / 5x cross out the two 5x's and you're left with 3/1 so your answer is 3.
Hope that helps! -Joe

Jun 07, 2011 | Sharp EL-531VB Calculator

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I have gone throught the programming steps 5x and no luck with the klik2 and a genie opener, any help?

I spoke to Overhead directly and they indicated that the HomeDepot Klick remote doesn't work with the older Overhead versions. They sold me a remote that worked for a cheaper price so I should have checked with them in the first place.
Now I'm happy after several days of frustration!

Apr 03, 2011 | Universal Garage Wireless Keyless Entry...

1 Answer

I need assistance understanding this algebra equation and the steps to solve it. 7+(9-5x)=5(2-x)

this is a simple algebraic equation in which we have to calculate the value of 'x' using simple operations


step 1(pen the brackets) 7+9-5x=10-5x
step 2(add 7 and 9) 16-5x=10-5x

now as 5x gets cancelled both the sides of the equal sign therefore no solution of this algebraic equation exist.

Mar 24, 2011 | MathRescue Word Problems Of Algebra Lite

2 Answers

How do I solve x and y in the following equations? 5x+3y=6 2x-4y=5 Thank you

You can solve it with following method.

5x+3y=6 2x-4y=5
So 5x=6-3y so 2[(6-3y)/5]-4y=5
So x=(6-3y)/5 so 12-6y-20y=25
so -26y=25-12
so -26y=13
so y= -(1/2)
so 2x=5+4y
so 2x=5+4(-1/2)
so 2x=(10-4)/2
so 2x=6/4
so x =3/2

The value of x=3/2 and value of y= -1/2

Let me know if you need further assistance.
Thanks for using FixYa.

Mar 03, 2010 | Office Equipment & Supplies

1 Answer

How do I graph an equation such as y= 5x + 2?

Turn calculator ON. If you do not see several icons press [MENu].
Use arrow to select the [GRAPH] application and press [EXE].
In the entry screen, the line with Y1= is highlighted. If it is not, use arrow to highlight it.
Press the right arrow, the highlighting disappears leaving you with Y1= and the blinking cursor.
At the position of the cursor enter 5 [X, theta,T] key under the [ALPHA]. On the screen appears 5X, complete you equation +2.
Press [EXE] to store function.
If you want to draw other functions, it is time to do so on that screen.
When done press [F6:Draw}.
If the screen does not show a lot of the function, you can use the arrow keys to pan the graph.
You can also press [SHIFT][V-Window] to set the window limits.

Hope it helps.

Oct 10, 2009 | Casio FX-9750GPlus Calculator

1 Answer

Report a bug

the exact equation is
15x^2 - 21x - 18
=3(5x^2 - 7x - 6)
=3{5x^2 -(10-3)x -6 }
=3{5x^2 - 10x + 3x -6}
=3{5x(x - 2) + 3(x-2)}
=3(x-2)(5x+3) these are the factors


Zulfikar Ali

Oct 16, 2008 | SoftMath Algebrator - Algebra Homework...

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