Can a King in Chess move into danger in this scenario?

If the white king is on a8 and the white rook is on a1 and the black king is on b6, can the white king legally move to a7 since the black king couldn't capture the white king since that would put itself in check with the rook? (Yes I know you don't capture the king in chess). Could the white king check the... show more If the white king is on a8 and the white rook is on a1 and the black king is on b6, can the white king legally move to a7 since the black king couldn't capture the white king since that would put itself in check with the rook? (Yes I know you don't capture the king in chess). Could the white king check the black king in this scenario? Please no guessing or assumptions. Only answer if you know for sure please.
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