x+3=12-1x

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Solution for x+3=12-1x equation:


x+3=12-1x

We simplify the equation to the form, which is simple to understand 
x+3=12-1x

We move all terms containing x to the left and all other terms to the right. 
+1x+1x=+12-3

We simplify left and right side of the equation. 
+2x=+9

We divide both sides of the equation by 2 to get x. 
x=4.5

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