Question

4 years ago, lal was twice as old as he was 9 years ago.find his present age.

Answer 1

Hi friend
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Your answer
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Let the age of Lal be x.

Then,
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x - 4 = 2(x-9)
x -4 = 2x - 18
x -2x = -18+4
-x=-14
x = 14

Therefore present age of Lal is 14 years.
HOPE IT HELPS
#SethRollins1

Answer 2

let his present age be X
so
his age 4 yrs ago= 2( he was 9 yrs ago)
x - 4 = 2(x - 9)
x - 4 = 2x - 18
x - 2x = -18 + 4
-x = -14
x = 14