2n+5=15

2n+5=15

     -5  -5

2n/2=10/2

\(\boxed{n=5} \)

-hihihi

🔮🔮🔮

15-5=10

2n=10

n=5

Same thing as hihihi and KSW said... but more detailed (i think)

\(2n+5=15\:\:\)

\(\mathrm{Subtract\:}5\mathrm{\:from\:both\:sides}\)

\(2n+5-5=15-5\)

\(\mathrm{Simplify}\)

\(2n=10\)

\(\mathrm{Divide\:both\:sides\:by\:}2\)

\(\frac{2n}{2}=\frac{10}{2}\)

\(\mathrm{Simplify}\)

\(n=5\)