(12)-(-21)=m

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Solution for (12)-(-21)=m equation:


(12)-(-21)=m

We simplify the equation to the form, which is simple to understand 
(12)-(-21)=m

Remove unnecessary parentheses
12-(-21)=m

Remove unnecessary parentheses
12+21=m

We move all terms containing m to the left and all other terms to the right. 
-1m=-12-21

We simplify left and right side of the equation. 
-1m=-33

We divide both sides of the equation by -01 to get m. 
m=33

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