Question

Given the system of equations, what is the solution?

x + 2y = 11
x - 2y = -1

{(-5, -3)}
{(1, 1)}
{(5, 3)}

Answer 1

Add them
2 x=10
x=5
Can you find y now?

Answer 2

Replacing in the first equation, one gets
5+ 2y =11
2y=6
y=3

Answer 3

Year your right