4 unknowns, 4 equations but variable undefined

[yappyap]

Hi everyone, I am new to Mathcad Prime (first time using it).

I have to solve 4 unknowns given 4 equations, but i'm not sure how even after watching all the YouTube tutorials.

The software keeps telling me that i have variables undefined, but they are not supposed to be defined as I have to solve for them.

Would appreciate any help! Thank you (:

[terryhendicott]

Hi,

You do it like this.  There are two types of equal signs ":=" press equal sign for assignment. and [Ctrl]= to get comparison equal.  Comparison equal is shown by a bold equal sign =. You need to set the guess values to a better start point for it to work.

[Werner_E]

Here are working guess values.

It was done in Mathcad 15, so the solve block looks different as in Prime.