6r+7+3r=-21

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Solution for 6r+7+3r=-21 equation:


6r+7+3r=-21

We simplify the equation to the form, which is simple to understand 
6r+7+3r=-21

We move all terms containing r to the left and all other terms to the right. 
+6r+3r=-21-7

We simplify left and right side of the equation. 
+9r=-28

We divide both sides of the equation by 9 to get r. 
r=-3.1111111111111

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