9x+4x=12x

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Solution for 9x+4x=12x equation: 


Simplifying
9x + 4x = 12x

Combine like terms: 9x + 4x = 13x
13x = 12x

Solving
13x = 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
13x + -12x = 12x + -12x

Combine like terms: 13x + -12x = 1x
1x = 12x + -12x

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

Divide each side by '1'.
x = 0

Simplifying
x = 0

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