How do solve the following linear system?: # -x+3y=-5 , 2x+7=-5y #?
I have taken you to a point where you can solve for
To solve a single equation you can only do so it contains only one unknown. So to solve any of these two we need to 'get rid of a variable'
Look at equation (1). We have a single
Consider equation (1)
Multiply by (-1) to make the
Substitute equation (3) into equation (1) or (2). You chose!
I will let you finish this off.