#### Answer

Yes.

#### Work Step by Step

We can check to see if 3 is a solution of 2n-6=5n-15 by substituting 3 into n. If the equation is true, 3 is a solution. If the equation is not true, 3 is not a solution.
2n-6=5n-15
2(3)-6=5(3)-15
6-6=15-15
0=0
Since 0=0, 3 is a solution.