Make a VBA or Macro in excel to show all results (in a range of query) for Math Algebra formula

i enter from 1 to 7 whole integers (usually i only use 3 or 4 in each query). A1, A2, A3, ..., A6, A7 i enter from 1 to 7 factors for each integer. F1, F2, F3, ...., F6, F7 Calculate A1*F1+A2*F2+A3*F3+ ..... + A7*F7 = R (Resulting Value). So, far, This is, very simple i can do my self, as a simple formula in excel. THIS PROJECT WORK: You have to make a VBA or Macro, to find all Possible combinations of N Integers (As many rows of results, as possible), N1, N2, N3, ...., N6, N7. So, that the following is true: Mod(A1*F1*N1+A2*F2*N2+A3*F3*N3+ ..... + A7*F7*N7;6236) = R (Resulting Value, the same R as before). Any N integer value can be repeated, and can be positive or negative. For selected range i specify such as -100 to 100. Notes: Any N can be same as any other N, i.e. duplicates allowed. Only restriction is all N's must be whole numbers, no decimals. I need this done in 1 hour for my study. if you are not sure, you can finish in 1 hour, do not bid. Thanks.