NEEDING HELP ASAP PLEASE :( click on photo

9514 1404 393

  (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

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  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).

To simplify the equation, Erika must isolate the x. This means to get the x by itself. In order to do so, Erika needs to divide 50x by fifty to undo the multiplication. What is done on on side, must be done on the other by the Division Property of Equality. Therefore, Erika must divide seventeen by fifty as well. The answer Erika should end up with is x=0.34