Question

What is the solution to this system of linear equations?

y − x = 6

y + x = −10

A. (−2, −8)
B. (−8, −2)
C. (6, −10)
D. (−10, 6)

Answer 1

the correct answer is c

Answer 2

answer is B. (−8, −2)

y − x = 6

y + x = −10
...........................add
2y = -4
y = -4/2
y = -2

y − x = 6
-2 - x = 6
-x = 6 + 2
x = 8
x = -8

(-8,-2)