How To Solve Algebra Problems
By Craig Hewitt
 
 
How to solve an equation
Here is the equation
-6a+3=-5a+9

-6a+3=-5a+9
 Given Problem
-6a=-5a+6
 First take the 3 away from one side but you must take it away from the other side too.
-a=6
 Then take -5a away from both sides by adding and it leaves you with -1a or -a
A=-6
 To change it from -a=6 to a=-6 just multiply -a and 6 by -1

 

Here is the next example...how to find slope!
This equation will give you slope
(Y2-Y1)
(X2-X1)
(12-8) 
(6-2)
 First you plug in the coordinates
4 
4
 Then you subtract the plugged in numbers
4 
 4 
 Then you have the slope
The answer is 1

 
 

This is a problem that is given and you must find the slope

The origin and (-3,-5)
 The origin means (0,0) so now you have 2 sets of coordinates and can use the last equation to get the slope
(-3,-5) and (0,0)     (0--3) 
                              (0--5)
 You set it up like the problem before and just do what the signs tell you to do
3 
5
 This is the slope and you can leave it in this form

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