Find the coordinates of the intersection point common to the two boundary lines and .

MATHEMATICS · Single correct · AoPS · Mathematics · Multi-Variable Linear Equations · Multi-Variable Linear Equations

Problem

Find the coordinates of the intersection point common to the two boundary lines

2x + y = 10

and

x + y = 7

. (a)

(4,3)

(b)

(2,5)

(c)

(3,4)

(d)

(3,7)