Question

Est. Length: Est. Length: 0:2000Time Taken: 000:48Emalee Welsh: Attempt 1Questions What is the solution to the system of equations?0 of 5 questions savedUse the linear combination method.Page 1:1 2 3 4 5Legendsaved Response8)Unsaved ResponseInfo Item(-2, 12)Quiz Status(0,2)Quiz Started(-3, 17)

Answer 1

5x + y = 2
4x + y = 4

  5x + y = 2
-(4x + y = 4)

  5x + y = 2
-4x  - y  = -4
    x        = -2

x = -2 

5x + y = 2
5(-2) + y = 2
-10 + y = 2
y = 2 + 10
y = 12

x = - 2
4x + y = 4
4(-2) + y = 4
-8 + y = 4
y = 4 + 8
y = 12

x = -2 ; y = 12 ⇒ (-2,12)