Question

After 12 years, I shall be 3 times as old as I was 4 years ago. Find my present
age.
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Answer 1

present age =12

let the present age be x.then,

x+12=3(x‐4)

=>x+12=3x‐12

=>x‐3x=‐12‐12

=>‐2x=‐24

=>x=‐24/‐2

=>x=12

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