Question

NEEDING HELP ASAP PLEASE :( click on photo

Answer 1

9514 1404 393

Answer:

  (1, 1)

Step-by-step explanation:

Did you watch the video?

The y-coefficients have opposite signs and one is a multiple of the other. It is convenient to divide the second equation by 2 and add that to the first.

  (5x -2y) +1/2(4x +4y) = (3) +1/2(8)

  7x = 7 . . . . simplify

  x = 1 . . . . .  divide by 7

__

  4(1) +4y = 8 . . . . substitute for x in the second equation

  4y = 4 . . . . . . . .  subtract 4

  y = 1 . . . . . . . . . . divide by 4

The solution is (x, y) = (1, 1).