The given expression is
[tex]T=-0.0035a+g[/tex]To solve for a, we need to subtract g on each side.
[tex]\begin{gathered} T-g=-0.0035a+g-g \\ T-g=-0.0035a \end{gathered}[/tex]Now, we divide the equation by -0.0035
[tex]\begin{gathered} \frac{-0.0035a}{-0.0035}=\frac{T-g}{-0.0035} \\ a=\frac{T-g}{-0.0035} \end{gathered}[/tex]Therefore, the final expression is
[tex]a=-\frac{T-g}{0.0035}[/tex]