Field Guide/Number/Simultaneous equations
Core3 min

Solve simultaneous linear equations

You need a numerical check or solution for a small linear system.

01

Press these keys

APPSPlySmlt2SIMULT EQN SOLVER

Step 1 of 3. Press APPS.

02

Walkthrough

  1. 1
    Open the app

    Press APPS and choose PlySmlt2 (Polynomial Root Finder and Simultaneous Equation Solver). Availability depends on the installed system apps.

  2. 2
    Choose system size

    Select SIMULT EQN SOLVER, then 2 equations and 2 unknowns.

  3. 3
    Enter coefficients

    For ax+by=c, enter a, b and c for each row, then choose SOLVE.

03

Worked example

Solve 2x+y=7 and x−y=2.

Answerx=3, y=1.