Respuesta :

Hello friend!

1/3(9x+12)=15

We move all terms to the left:

1/3(9x+12)-(15)=0


Domain of the equation: 3(9x+12)!=0

x∈R


We multiply all the terms by the denominator


-15*3(9x+12)+1=0

multiply elements

-45x(9+1=0