This is an example Linear programming with scalar variables and affine functions of ODMO program.
$$
\begin{align}
\underset{x,y}{\min} & \quad a_1 x + a_2 y \\
\text{s.t.} & \quad b_1 x + b_2 y \geq c \\
& \quad d_1 \leq x \leq d_2 \\
& \quad e_1 \leq y \leq e_2
\end{align}
$$
[Set] appropriate values below to describe your problem.