3x-3x=12+x

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


Simplifying
3x + -3x = 12 + x

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

Solving
0 = 12 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
0 + -1x = 12 + x + -1x
Remove the zero:
-1x = 12 + x + -1x

Combine like terms: x + -1x = 0
-1x = 12 + 0
-1x = 12

Divide each side by '-1'.
x = -12

Simplifying
x = -12

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