Thank you for the replies.

Here's the solved equation for the problem. You're right Steve, I forgot to include the (-), my mistake. The N1 is not solved for -700 in this scenario though.

MrShorty, when I get to the "-700 - μ(N1) - μN2(.156) + N2(.988) = 0" part, I can simplify it down to "-700 -0.25(0.403N2 + 0.949N2 = 0"

This simplifies to 0.848N2 = 700 when we solve for N2 (Last block of work in the attached photo).

Richard, if I understand you correctly: the first. N1 will be 0.403N2 and we will use this to solve for N2 and later, N1. I have tried Solver, but I just applied the addon today and have virtually no experience with it.

Thank you all again for the help, I've been struggling with trying to get this into Excel all morning.

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