What is the answer to 4e plus 3d plus 5e-5d?

The expression 4e + 3d + 5e - 5d can be simplified by combining like terms. Grouping the terms with the same variable together, we have 4e + 5e + 3d - 5d. Combining the coefficients of e gives us 9e, and combining the coefficients of d gives us -2d. Therefore, the simplified expression is 9e - 2d.