How do you solve the following system?: #5x-7y=22 , 3x+3y=-21 #
Let's notice that we can divide the second equation by 3:
I'll solve for
And now substitute into the first equation:
Graphed, it looks like this:
(On my screen, the graphing utility is sometimes cutting off one part of one of lines. To fix, hover over the graph and zoom in/out and that seems to fix it).