Question

Solve the system of equations and choose the correct answer from the list of

options.
d + e = 12
-d + e = -8
Label the ordered pair as (d, e).
1) (0,0)
2) (2, 10)
3) (10,2)
4) (12,0)

Answer 1

3) =(10,2) is correct because

(d,e) = (10,2) respectively

then, d±e

10±2

12

-d±e

-10±2

-8