19t+8-t-20=

19t+8-t-20=0

 

Solve for t:
18 t-12 = 0

Factor constant terms from the left hand side:
6 (3 t-2) = 0

Divide both sides by 6:
3 t-2 = 0

Add 2 to both sides:
3 t = 2

Divide both sides by 3:
Answer: | 
| t = 2/3