9=3(x*x+2)-18

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Solution for 9=3(x*x+2)-18 equation:


9=3(x*x+2)-18

We simplify the equation to the form, which is simple to understand 
9=3(x*x+2)-18

Reorder the terms in parentheses
9=+(*x+6)-18

Remove unnecessary parentheses
+9=+*x+6-18

We move all terms containing x to the left and all other terms to the right. 
-1x=+6-18-9

We simplify left and right side of the equation. 
-1x=-21

We divide both sides of the equation by -01 to get x. 
x=21

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