-2(21+7)=

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Solution for -2(21+7)= equation:


-2(21+7)=0

We simplify the equation to the form, which is simple to understand 
-2(21+7)=0

Simplifying terms in parentheses
-2*(+28)=0

Reorder the terms in parentheses
+(-56)=0

Remove unnecessary parentheses
-56=0

We move all terms containing  to the left and all other terms to the right. 
0=0+56

We simplify left and right side of the equation. 
0=+56

0=56

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

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