Answer:
t = - [tex]\frac{3}{a}[/tex]
Step-by-step explanation:
Given
1 = 4 + at ( isolate at by subtracting 4 from both sides )
- 3 = at ( divide both sides by a )
[tex]\frac{-3}{a}[/tex] = t ⇒ t = - [tex]\frac{3}{a}[/tex]