Simplifying
3x + -3y = 27
Solving
3x + -3y = 27
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3y' to each side of the equation.
3x + -3y + 3y = 27 + 3y
Combine like terms: -3y + 3y = 0
3x + 0 = 27 + 3y
3x = 27 + 3y
Divide each side by '3'.
x = 9 + y
Simplifying
x = 9 + y
Hope this helps
