-30-(-30)=

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Solution for -30-(-30)= equation:


-30-(-30)=0

We simplify the equation to the form, which is simple to understand 
-30-(-30)=0

Remove unnecessary parentheses
-30+30=0

We move all terms containing  to the left and all other terms to the right. 
0=0+30-30

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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