Jill is thinking of a number. Twenty less than one fourth of the number is 45. Find Jill's number. x = the number x/4  20 = 45 {twenty less than onefourth of the number is 45} x/4 = 25 {added 20 to each side} x = 100 {multiplied each side by 4} The number is 100, Jill can think of something else, now.  Algebra House
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