Question

Use the Elimination method to solve the system of equations.

X+y=-3
X-y=13

Answer 1

For x
x+y=-3
x-y=13
---------
2x=10
x=5
For y
5+y=-3
y=-3-5
y=-8

Answer 2

x + y = -3
x - y = 13
2x = 10
2 2
x = 5
x + y = -3
5 + y = -3
- 5 - 5
y = -8
(x, y) = (5, -8)