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First of all, we need to get the equations in a form so that either x or y can be eliminated.

In this case, I have a positive amount of y, and a negative amount of y, meaning that I can a...

To find the midpoint between two points, first we must find the mid point between the x coordiates and then the y coordinates.

The x coordiate of A is 8 and the x coordia...

Initially drawing a diagram of the two lines helps to establish whether values should be positive or negative and gives a rough approximation of where the answer may be:

By...

(1): 3x+5y=3

(2): 6x+6y=10

Multiply number one by two to give a common factor of 6x in both equations.

(3)=[2*(1)]- 6x+10y=6

Take away equation (...

-First of all add these two equations together so that the ys get eliminated. 
5x=15
x=3 
Since you have found the answer to x which is 3, substitute x into the equation 2x...