-3(-3)+9=18

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


-3(-3)+9=18

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

Reorder the terms in parentheses
+(+9)+9=18

Remove unnecessary parentheses
+9+9=+18

We move all terms containing  to the left and all other terms to the right. 
0=+18-9-9

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

0=0

This equation is an identity, so all real numbers are solutions.

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