need help with this parameter

Question

Eliminate the parameter t to find a Cartesian equation in the form x=f(y) for:

x(t)=-3t

y(t)=-8+2t

The resulting equation can be written as x = 

Answer 1

Solve the 2nd equation for t.

Substitute this expression for t in the 1st equation.

Answer 2

x=-3t

y=-8+2t

2t=y-8

t=y/2 -4

x=-3(y/2 -4) = 3y/2 -12

x=f(y) = 3y/2 - 12