How to solve this linear equation

Guess values must be not yours but a0:=1 b0:=1 for example.

And you must have as an answer not vec, but vec(x)

Send please the sheet!

> How to find the value of a0 and b0 in terms of x.

If you are looking for a symbolic solution in x you will have to use the symbolic "solve" command, not a numeric solve block.

In Mathcad (15 and below) we were able to symbolically evaluate a solve block, but unfortunately in Prime this is not possibly anymore.

You can get numeric values for specific x using the solve block, but not a symbolic solution in terms of x.

Not willing to retype the expressions from your screenshot, so here is a simpler example which shows how a symbolic solution can be derived.

WE