-3x-3y=12

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Solution for -3x-3y=12 equation: 


Simplifying
-3x + -3y = 12

Solving
-3x + -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.
-3x + -3y + 3y = 12 + 3y

Combine like terms: -3y + 3y = 0
-3x + 0 = 12 + 3y
-3x = 12 + 3y

Divide each side by '-3'.
x = -4 + -1y

Simplifying
x = -4 + -1y

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