Question

Solve the system using substitution.x+y=-2&x-y=-8 (–3, 5) (5, –3) (3, –5) (–5, 3)

Answer 1

(-3, 5)

Explanation:

X + y = 2---------------1

X - y = 8----------------2

Substitution method

X = 8 + y

Put x = 8+ y in 1 above

(8+y) +y= 2

2-8= 2y

-6 = 2y

Y= -3

Do same for x