Question 756620: Please help me solve for t!!!!
7t/a-t - a+t/7t
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! We cannot solve for t from what was posted.
There is no equal sign, so there is no equation that would give any information about t.
EXAMPLES:
7t/(a-t) = (a+t)/7t and 7t/a-t = a+t/7t
are equations because each one has an equal sign.
They can be solved for t, and I will show you how I would solve them.
NOTE:
Those parentheses make a big difference in the meaning of the expressions on both sides of the equal sign.
With pencil and paper, I can easily write
7t/(a-t) = (a+t)/7t as  .
Those long horizontal fraction lines above  and below  include invisible parentheses wrapping everything written above the line, and everything written below the line.
7t/a-t = a+t/7t can be written as 
which can be simplified to 
I don't like equations with fractions, so at this time, I would multiply everything times 7. That gives me the equivalent equation
Taking out common factor t, we get
 -->  --> 
Finally, we get the solution by multiplying both sides of the equal sign times  , which is the same as dividing by 
 -->  -->  -->  --> 
7t/(a-t) = (a+t)/7t can be written as
Multiplying oth sides of the equal sign times  we get
 --> 
Next, multiplying oth sides of the equal sign times  we get
 --> 
Now, adding  to both sides of the equation, we get
 --> 
There are two solutions to that equation.
One is  and it can be written more elegantlu as  .
The other solution is  , which can be written more elegantly as  .
|
|
|
