Question

I add 12 to a number aold

the double their sum. The
result is one and a half
times what I get when
get when I double the original
number and 12- find the
number
​

Answer 1

2(n+12) = 3/2 (2n+12)

2*2(n+12)=3(2n+12)

4n+48=6n+36

48-36=6n-4n

12=2n

12/2=n

n=6