.
Standard form linear equation of two variables is
ax + by = c.
THEREFORE, to get the standard form linear equation in your case.
simply collect all variable terms in the left side; keep the constant term on the right side.
When you move the terms from one side equation to its other side, do not forget to change the sign
of the term, which you move across the equality sign.
In order to have integer coefficient in the standard form, multiply all the terms of the standard form by 3,
in both sides of the equation.
