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Set up an equation Let the number be x. 55% of x = 77 "of" means multiply, so 55% * x = 77 55% is the same as 0.55 (% means divide by 100). 0.55x = 77 x = 140
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Set up an equation Let the number be x. 55% of x = 77 "of" means multiply, so 55% * x = 77 55% is the same as 0.55 (% means divide by 100). 0.55x = 77 x = 140