Respuesta :

 t = 12   10•(t-12)  • 3 = 0 • 3 3  Add  12  to both sides of the equation : 
 
                     t = 12 
Step 1- You will multiply inside the parentheses, so 2/3 by 5t, and 2/3 by 3
Step 2- Rearrange, you will add the product of 2/3 and 3 to 38
Step 3- You will divide both sides by the product of 2/3 and 5t. 
The answer is 12.01