
David W. answered 04/08/19
Experienced Prof
"To solve" means to find a value(s) for the variable(s) that satisfies the equation or inequality.
Often, we write an ordered pair of variables as (x,y).
For this equation, here are some solutions [select one you like or create your own];
(10,5) because 10 - 5 = 5
(20,15)
(6,1)
(0,-5) [notice the negative value]
. . .