How do you solve the system of linear equations #3x + 2y = 6# and #x + 2y = -6#?
x+2y= -6/ (-1)
We times the second equation by -1 in order to get 2y and -2y.
Then we add two equations together:
Then we put x in the second equation to calculate y:
You can check if the answer is correct or not by putting values of both x and y into both equations.