2x+x+9=x+2x+12

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Solution for 2x+x+9=x+2x+12 equation: 


Simplifying
2x + x + 9 = x + 2x + 12

Reorder the terms:
9 + 2x + x = x + 2x + 12

Combine like terms: 2x + x = 3x
9 + 3x = x + 2x + 12

Reorder the terms:
9 + 3x = 12 + x + 2x

Combine like terms: x + 2x = 3x
9 + 3x = 12 + 3x

Add '-3x' to each side of the equation.
9 + 3x + -3x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
9 + 0 = 12 + 3x + -3x
9 = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
9 = 12 + 0
9 = 12

Solving
9 = 12

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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