Four - fifths of a number is 20 less than the
original number. Find the ne
let the
Answers
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Given:
let the number be x.
(4/5)x=x-20
find x?
Solution:
⇒4x/5=x-20
⇒4x=(x-20)×5
⇒4x=5x-100
⇒5x-4x=100
⇒x=100
∴x=100
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