Sagot :
[tex]y-\ first\ number\\\\ x-\ other\ number\\\\
x+y=83\\
y=45\\
45+x=83\ \ \ | subtract\ 45\\
x=38\\\\
Other\ number\ was\ 38.[/tex]
the answer is 38.
83 minus 45 equals to 38
38 plus 45 equals to 83