I'm trying to have two buttons side by side that look correct on all devices, but no matter what restrictions I seem to add, I am having problems like this (one button more than the other):

Any ideas on what I'm doing wrong by adding restrictions? I do not use the code for this, I just do it through InterfaceBuilder in the Storyboard.
A set of restrictions:
Answer: leading space, lower space, height is: 45, button "Go to delete"
Delete: trailing space, lower space, 32: 9 ratio, height is: 45, leading to Btn answer
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