SIMULTANEOUSLY
all at once
all at the same time.The entire group spoke all at once.They were trying to cook dinner, clean house, and paint the closet all at once.
in the same breath
[stated or said] almost at the same time.He told me I was lazy, but then in the same breath he said I was doing a good job.The teacher said that the students were working hard and, in the same breath, that they were not working hard enough.