just want to ask which is correct way of doing ax + by + x = 0
example is y = 2x + 8
y -y = 2x -y + 8 (basically take away y both sides)
0 = 2x -y + 8
or
y - 2x -8 = 2x + 8 - 2x - 8 (instead of taking y away, take 2x + 8 away both sides)
-2x + y - 8 = 0
which one is correct?
thanks for your help in advance.