Concept:Simplify the left-hand side, then divide by 50 to find the unknown value.Explanation:First, calculate 5437−3153=2284.Then add 2284: 2284+2284=4568.So, ?×50=4568.Divide both sides by 50: ?=504568​.504568​=91.36.Answer:?=91.36So, the correct option is B.