t = -2.5 or [tex] -\frac{5}{2} [/tex]
Here's how we find that out:
2t -5 = -10..........................We need to get the variable, t, by itself
2t = -5................................Add 5 to both sides
t = -2.5...............................Divide both sides by 2
So, your answer is [tex]- \frac{5}{2} [/tex] 0r -2.5
I hope this helped! Have a great day! :))