-X-12=-4x+9

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Solution for -X-12=-4x+9 equation:


-x-12=-4x+9

We simplify the equation to the form, which is simple to understand 
-x-12=-4x+9

We move all terms containing x to the left and all other terms to the right. 
-1x+4x=+9+12

We simplify left and right side of the equation. 
+3x=+21

We divide both sides of the equation by 3 to get x. 
x=7

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