SOLUTION: What is the number increased by one-half of itself is equal to 21? Find the number which when decreased by three-fourths of itself equals 28.
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Question 907344: What is the number increased by one-half of itself is equal to 21? Find the number which when decreased by three-fourths of itself equals 28.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
n + n/2 = 21
2n + n = 42
3n = 42
n = 14
........
n - 3n/4 = 28
4n - 3n = 112
n = 112
And...checking
112 - (3/4)112 = 112 -84 = 28
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