4n+9=12

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Solution for 4n+9=12 equation:


4n+9=12

We simplify the equation to the form, which is simple to understand 
4n+9=12

We move all terms containing n to the left and all other terms to the right. 
+4n=+12-9

We simplify left and right side of the equation. 
+4n=+3

We divide both sides of the equation by 4 to get n. 
n=0.75

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