Question

if you add 12 more to 30% of me I would be 1 half of original me. what am I do in copy

Answer 1

12+30%of x=x/2
12+30%=x/2
therefore 12 =20%
20%of x=12
20/100×x=12
therefore x=12×100/20
=12×5
=60

verification
let x=60
30% of 60+12
=30/100×60+12
=1800/100+12
=18+12
=30{which is 50% of 60}
{hence verified}