(7m-21)+(m+9)=15

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Solution for (7m-21)+(m+9)=15 equation:


(7m-21)+(m+9)=15

We simplify the equation to the form, which is simple to understand 
(7m-21)+(m+9)=15

Remove unnecessary parentheses
7m-21+(m+9)=15

Remove unnecessary parentheses
+7m-21+m+9=+15

We move all terms containing m to the left and all other terms to the right. 
+7m+1m=+15+21-9

We simplify left and right side of the equation. 
+8m=+27

We divide both sides of the equation by 8 to get m. 
m=3.375

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