Simplifying
-11y + 13x = -12
Reorder the terms:
13x + -11y = -12
Solving
13x + -11y = -12
Solving for variable 'x'
. Move all terms containing x to the left, all other terms to the right.
Add '11y' to each side of the equation
. 13x + -11y + 11y = -12 + 11y
Combine like terms: -11y + 11y = 0
13x + 0 = -12 + 11y
13x = -12 + 11y
x = -0.9230769231 + 0.8461538462y