4a+9a=

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Solution for 4a+9a= equation:


4a+9a=0

We simplify the equation to the form, which is simple to understand 
4a+9a=0

We move all terms containing a to the left and all other terms to the right. 
+4a+9a=0

We simplify left and right side of the equation. 
+13a=0

We divide both sides of the equation by 13 to get a. 
a=0

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