Question 703324
{{{7n=9(n+4)}}} Start with the given equation.



{{{7n=9n+36}}} Distribute.



{{{7n-9n=36}}} Subtract {{{9n}}} from both sides.



{{{-2n=36}}} Combine like terms on the left side.



{{{n=(36)/(-2)}}} Divide both sides by {{{-2}}} to isolate {{{n}}}.



{{{n=-18}}} Reduce.



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Answer:


So the solution is {{{n=-18}}}