Answer:
t = 9
Step-by-step explanation:
-t = 9(t - 10)
First, distribute the 9.
-t = 9t - 90
Next, add subtract 9t from both sides.
(-t) - 9t = (9t - 90) - 9t
-10t = -90
Divide both sides by -10. When you divide a negative by another negative, they cancel each other out.
(-10t)/-10 = (-90)/(-10)
t = 9
