Simplifying
6x + 3y = -12
Solving
6x + 3y = -12
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.
6x + 3y + -3y = -12 + -3y
Combine like terms: 3y + -3y = 0
6x + 0 = -12 + -3y
6x = -12 + -3y
Divide each side by '6'
. x = -2 + -0.5y
Simplifying
x = -2 + -0.5y