Solve Equations in Excel using Solver Add-in Solver Add-in is a powerful and useful tool of Excel which performs calculations to give the optimal solutions meeting the specified criteria.

Excel can solve equations through several of its mathematical functions, but the single Excel tool that works on the largest variety of equations is the program's Solver Add-in.

How to Calculate Y-Intercept in Excel. The y-intercept is the point at which a linear equation crosses the y-axis on the x=0 plot point. The equation to determine both the slope and the y ...