21+3x=3x+15

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Solution for 21+3x=3x+15 equation:


21+3x=3x+15

We simplify the equation to the form, which is simple to understand 
21+3x=3x+15

We move all terms containing x to the left and all other terms to the right. 
+3x-3x=+15-21

We simplify left and right side of the equation. 
0x=-6

0=-6

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

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