Equation is formed when two equal expressions are equated together with the help of an equal sign '='. The value of n is -4.
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
As the equation is given to us, therefore, the value of the n can be found as,
[tex]3n+2(n+2)=9n+12\\\\3n+4n+4=9n+12\\\\7n-9n=12-4\\\\-2n = 8\\\\n =\dfrac{8}{-2}\\\\n=-4[/tex]
Hence, the value of n is -4.
Learn more about Equation:
https://brainly.com/question/2263981
