3/5n 9/10=1/5n-23/10
(3/5n)(9)10=1/5n−23/1027/50n=1/5n+−23/10Subtract 1/5n from both sides.27/50n−1/5n=1/5n+−23/10−1/5n17/50n=−23/10Multiply both sides by 50/17.(50/17)(17/50n)=(50/17)(−23/10)n=−115/17