Question

Solve for x and y: x+y=5 x−y=a

Answer 1

x=5/2 + a/2, y= 5/2 - a/2

Explanation:

We can solve this system using addition of the equations

x+y=5

x-y=a

2x =(5+a)

x=(5+a)/2= 5/2 +a/2

x=5/2 +a/2

x-y=a

y = x - a , x=5/2 + a/2

y= 5/2 + a/2-a

y= 5/2 - a/2