x+2x=12+2x

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Solution for x+2x=12+2x equation: 


Simplifying
x + 2x = 12 + 2x

Combine like terms: x + 2x = 3x
3x = 12 + 2x

Solving
3x = 12 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
3x + -2x = 12 + 2x + -2x

Combine like terms: 3x + -2x = 1x
1x = 12 + 2x + -2x

Combine like terms: 2x + -2x = 0
1x = 12 + 0
1x = 12

Divide each side by '1'.
x = 12

Simplifying
x = 12

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