The equations and are required to have the same solution for

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

Problem

The equations

x - 4 = 9

and

x + k = 2

are required to have the same solution for

x

. What is the value of

k

? (a)

11

(b)

13

(c)

-11

(d)

-3