Answer:
The solution to this equation is (1, 3)
Step-by-step explanation:
In order to determine if it is a solution, you must put both variables into the equation and have it produce a true statement. (1, 3) does exactly that.
2x - y = -1
2(1) - (3) = -1
2 - 3 = -1
-1 = -1 (TRUE)
