(4+r)+10=-21

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Solution for (4+r)+10=-21 equation:


(4+r)+10=-21

We simplify the equation to the form, which is simple to understand 
(4+r)+10=-21

Remove unnecessary parentheses
4+r+10=-21

We move all terms containing r to the left and all other terms to the right. 
+1r=-21-4-10

We simplify left and right side of the equation. 
+1r=-35

We divide both sides of the equation by 1 to get r. 
r=-35

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