Standard form looks like:
Ax + By = C
Example:
5x + 3y = 8
While General form looks like:
Ax + By + C = 0
(It should always be equal to zero)
Example:
6x + 8y + 7 = 0
Turning standard form to general form:
8x + 7y = 9
Move 9, it will become a negative value.
8x + 7y - 9 = 0
And replace 9's place with 0
