Step-by-step explanation:
Given equations:
To Show : (2, 1) is a solution of the system of equations.
Substitute the value of x = 2 & y = 1 in both the equations,
1. x + 3y = 5
2 + 3(1) = 5
2 + 3 = 5
5 = 5 ,True
Also,
2. y = - x + 3
substitute the value of x & y
1 = -2 + 3
1 = 1 , True
Therefore, (2, 1) is a solution of the both the system of equations.
