x=2y= -2 y= -2x- 1

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Looks like spelling error, assuming the two equations arex = 2y - 2y = -2x -1Since you know what x and y both equal, you can take your pick on what variable to substitute. Personally, I will choose to substitute y, and I'll substitute -2x - 1 for y.x = 2(-2x - 1) - 2Then we solve for x.x = -4x - 2 - 2x = -4x - 45x = -4x = -4/5So, x = -4/5. Now we substitute that value in to find y.y = -2(-4/5) - 1y = 8/5 - 1y = 3/5So, y = 3/5.This means our answer is x = -4/5, y = 3/5.