comparing the 2 wheels side by side we have
20x9 +35
20x10 +40
vs
21x8.5 +40
21x9 +40
front wheel would have 1mm more inner clearance
outer would sit in 11mm more
rear wheels would have 13mm more inner clearance
outer would sit in 13mm more
simply put, they should fit but will be more sunken into the wheel well by ~1/2 inch