x+9=x+12

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Solution for x+9=x+12 equation: 


Simplifying
x + 9 = x + 12

Reorder the terms:
9 + x = x + 12

Reorder the terms:
9 + x = 12 + x

Add '-1x' to each side of the equation.
9 + x + -1x = 12 + x + -1x

Combine like terms: x + -1x = 0
9 + 0 = 12 + x + -1x
9 = 12 + x + -1x

Combine like terms: x + -1x = 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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