Answer:
23
Explanation:
This question is actually too simple
But let Me explain
First, I'd say we're looking for 'r'
So we make 'r' a constant in the equation
aND by doing so we land at this equation below
r =34-11 reason (11 is moving over to the other side) so it'll automatically become minus
then you solve
Since r =34-11 > r =23.