Question

Jerome added two numbers. The sum was 83. One of the numbers was 45.

What was the other number? Work shown please

Answer 1

Put one number as x and the other as y
x+y=83
Since we already know one is 45, we substitute one of them for 45.
45+x=83
Subtract 45 on each side
x=38
The other number is 38. Hope this helps.