Systems of Linear Equations

• linear equation

일차 방정식

ex)

x+2y = 3

-x+3y =2

(linear equation x

x^2+2y = 3

x^2 + 3y = 2)

• Solution set

ex)

x + 2y = 3

3x + 6y = 9

x = 1 y = 1

x = 2 y = 1/2

...

{ (1, 1), (2, 1/2), ...} ⇒ solution set