How do I find x in (x)/(3) -(x)/(4) =12

Question

How do I find x in


`(x)/(3) -(x)/(4) =12`

Answer 1

x=144

Explanation:

x/3-x/4=12

the common denominator must be 12,

4x/12-3x/12=12

since 4x-3x=x,

you have x/12=12,

x=12*12

x=144