a+4=3a-81

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Solution for a+4=3a-81 equation:


a+4=3a-81

We simplify the equation to the form, which is simple to understand 
a+4=3a-81

We move all terms containing a to the left and all other terms to the right. 
+1a-3a=-81-4

We simplify left and right side of the equation. 
-2a=-85

We divide both sides of the equation by -2 to get a. 
a=42.5

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