Solve the system using elimination.

y - x = 13

7y + x = 11

(-10, 16)

(-10, 3)

(3, 16)

(-3, - 10)

(-10, 3)

Step-by-step explanation:

Y - X = 13

7Y + X = 11

(Y+7Y) + (-X+X) = 13+11

8Y = 24

Y = 3

Solving for X:

Y - X = 13

Substitute Y=3

3 - X = 13

-X = 13-3

-X = 10

Multiply by - 1,

X = - 10

(-10, 3)