-3(1+x)=9

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Solution for -3(1+x)=9 equation:


-3(1+x)=9

We simplify the equation to the form, which is simple to understand 
-3(1+x)=9

Reorder the terms in parentheses
+(-3-3x)=9

Remove unnecessary parentheses
-3-3x=+9

We move all terms containing x to the left and all other terms to the right. 
-3x=+9+3

We simplify left and right side of the equation. 
-3x=+12

We divide both sides of the equation by -3 to get x. 
x=-4

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