x-9=x+12

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Solution for x-9=x+12 equation:


x-9=x+12

We simplify the equation to the form, which is simple to understand 
x-9=x+12

We move all terms containing x to the left and all other terms to the right. 
+1x-1x=+12+9

We simplify left and right side of the equation. 
0x=+21

0=21

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

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