Solving Systems By Linear Combinations

Given 2 Equations:

1. Put equations in the form a*x + b*y = c

2. Multiply one or both of the equations so that the coeffients in front of one of the variables are the same number but opposites.

3. Add the two equations straight down (this should cancel out one of the variables).

4. Solve for the unknown variable.

5. Choose one of the original equations and substitute in your solution from step 4.

6. Write your solutions for x and y as a coordinate point (x,y).