Answer :
n+d=33
5n+10d=235
n=-d+33
-5d+165+10d=235
5d=70
d=14
n=19
Ayana has 14 dimes and 19 nickels
5n+10d=235
n=-d+33
-5d+165+10d=235
5d=70
d=14
n=19
Ayana has 14 dimes and 19 nickels