Equal-area projections are designed to accurately represent the size of areas on the Earth's surface. However, they do contain inaccuracies in other aspects. The most relevant response regarding how equal-area projections are inaccurate would be:
Directions and the shapes of the landmasses are distorted.
This is because while the areas are represented correctly, the shapes and angles are not preserved, leading to distortions in direction and landmass outlines.