import numpy as np
from matplotlib import pyplot as plt

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

t = np.linspace(-2, 2, 10)
y = np.exp(-t)
plt.subplot(121)
plt.plot(t, y)
plt.title("Without margins")
plt.subplot(122)
plt.plot(t, y)
plt.title("With x=0 and y=0 margins")
plt.margins(x=0, y=0)
plt.show()