Question

6x + y = -1 -6x - 4y = 4 solve for x and solve for y

Answer 1

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Answer:

  (x, y) = (0, -1)

Step-by-step explanation:

The coefficients of x are opposites, so we can eliminate x by adding the two equations.

  (6x +y) +(-6x -4y) = (-1) +(4)

  -3y = 3 . . . . simplify

  y = -1 . . . . . . divide by -3

Now, we need to find x.

  6x -1 = -1 . . . substitute for y in the first equation

  6x = 0 . . . . . add 1

  x = 0 . . . . . . divide by 6

The solution is (x, y) = (0, -1).