Question

What is the solution to the following system of equations?

x+y=5
x-y=1

a. (-2, 7)
b. (2, 3)
c. (3, 2)
d. (7, -2)

Answer 1

x+y=5
x-y=1
-------------add
2x = 6
x = 3

x+y=5
3+y=5
y = 2

solution
(3,2)

answer is c. (3, 2)