2+(-1)+(-2)=

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Solution for 2+(-1)+(-2)= equation:


2+(-1)+(-2)=0

We simplify the equation to the form, which is simple to understand 
2+(-1)+(-2)=0

Remove unnecessary parentheses
+2-1+(-2+)=0

Remove unnecessary parentheses
+2-1-2=0

We move all terms containing  to the left and all other terms to the right. 
0=0-2+1+2

We simplify left and right side of the equation. 
0=+1

0=1

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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